50 results on '"Kriss JL"'
Search Results
2. Coverage with Selected Vaccines and Exemption Rates Among Children in Kindergarten - United States, 2023-24 School Year.
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Seither R, Yusuf OB, Dramann D, Calhoun K, Mugerwa-Kasujja A, Knighton CL, Kriss JL, Miller R, and Peacock G
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- Humans, United States epidemiology, Child, Preschool, COVID-19 prevention & control, COVID-19 epidemiology, Measles-Mumps-Rubella Vaccine administration & dosage, Vaccination statistics & numerical data, Vaccines administration & dosage, Child, Schools statistics & numerical data, Vaccination Coverage statistics & numerical data
- Abstract
In the United States, states and local jurisdictions set vaccination requirements for school attendance, conditions and procedures for exemptions from these requirements, grace periods for submitting documentation, and provisional enrollment for students who need more time to be vaccinated. States annually report data to CDC on the number of children in kindergarten who meet, are exempt from, or are in the process of meeting requirements. Data reported by 49 states and the District of Columbia (DC) for the 2023-24 school year were used for national- and state-level estimates of the following measures: complete vaccination with required doses of measles, mumps, and rubella vaccine (MMR), diphtheria, tetanus, and acellular pertussis vaccine (DTaP), poliovirus vaccine (polio), and varicella vaccine (VAR); exemptions from vaccination; and school attendance while meeting requirements. The 2023-24 kindergarten class became age-eligible to complete most state-required vaccinations during the COVID-19 pandemic, after schools had returned to routine in-person learning. Compared with approximated national coverage levels across all reported vaccines for the 2019-20 (95%) and 2022-23 (93%) school years, coverage dropped below 93% for the 2023-24 school year, ranging from 92.3% for DTaP to 92.7% for MMR. Exemptions increased to 3.3%, compared with those during the 2022-23 (3.0%) and 2021-22 school years (2.6%). Coverage with MMR, DTaP, polio, and VAR decreased in 35, 32, 33, and 36 jurisdictions, respectively, compared with the 2022-23 school year. Exemptions increased in 41 jurisdictions, with 14 reporting that >5% of kindergartners had an exemption from one or more vaccine. Efforts by health departments, schools, and providers are needed to ensure that students begin school fully vaccinated., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.
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- 2024
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3. Vaccination Coverage by Age 24 Months Among Children Born During 2017-2021 - U.S.-Affiliated Pacific Islands.
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Tippins A, Boyd EM, Coy KC, Mutamba G, and Kriss JL
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- Humans, Infant, Pacific Islands, Child, Preschool, United States, Vaccines administration & dosage, Vaccination Coverage statistics & numerical data
- Abstract
Childhood vaccination is one of the most successful public health interventions to improve life expectancy, decrease health care costs, and reduce the spread of preventable diseases. Using data from jurisdictional immunization information systems, vaccination coverage by age 24 months among children born during 2017-2021 in the U.S.-affiliated Pacific Islands was estimated for all vaccines included in jurisdictional programs. Progress toward the U.S. Healthy People 2030 and World Health Organization Immunization Agenda 2030 vaccination goals of ≥90% coverage by age 24 months with recommended vaccines was inconsistently met across jurisdictions. For example, coverage by age 24 months with ≥1 dose of measles, mumps, and rubella vaccine ranged from 68.2% to 91.6% by birth cohort in Federated States of Micronesia and from 87.4% to 96.6% in Palau; coverage with ≥4 doses of diphtheria and tetanus toxoids and acellular pertussis vaccine (DTaP) ranged from 39.6% to 60.6% in Federated States of Micronesia and from 73.4% to 85.4% in Palau. Coverage as of June 1, 2024, increased for all vaccines across all jurisdictions and birth cohorts, indicating catch-up vaccination after age 24 months. For example, coverage with ≥4 doses of DTaP by June 1, 2024, ranged from 74.0% to 84.4% in American Samoa by birth cohort and from 91.6% to 94.8% in Palau. This report is the first comprehensive analysis of trends in childhood vaccination coverage in the U.S.-affiliated Pacific Islands; data in this report can be used to determine where additional efforts are needed to assess reasons for delayed vaccination of children and strategies to mitigate vaccination delays, specific to each jurisdiction., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.
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- 2024
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4. Human Papillomavirus Vaccination Coverage Among Adolescent Girls Aged 13-17 Years - U.S.-Affiliated Pacific Islands, 2013-2023.
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Tippins A, Mutamba G, Boyd EM, Coy KC, and Kriss JL
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- Adolescent, Female, Humans, Human Papillomavirus Viruses immunology, Immunization Programs, Pacific Islands epidemiology, Retrospective Studies, United States epidemiology, Papillomavirus Infections prevention & control, Papillomavirus Vaccines administration & dosage, Vaccination Coverage statistics & numerical data
- Abstract
Worldwide, cervical cancer is the fourth most common cancer among women, and the World Health Organization (WHO) Western Pacific Region, where the U.S.-affiliated Pacific Islands (USAPI) are located, accounts for one quarter of all estimated cases. Human papillomavirus (HPV) vaccines are recommended at age 11-12 years to prevent most cervical cancers. HPV vaccines were introduced across USAPI during 2007-2016, predominantly provided through school-located vaccination programs. Retrospective analysis using data from jurisdictional immunization information systems was used to estimate vaccination coverage among adolescent girls as of the last day of each calendar year during 2013-2023. This analysis measured progress toward the WHO 2030 vaccination coverage goal of ≥90% completion of the HPV vaccination series among girls by age 15 years. As of December 2023, initiation of the HPV vaccination series among adolescent girls aged 13-17 years ranged from 58.0% in Palau to 97.2% in the Northern Mariana Islands, and HPV vaccination series completion coverage ranged from 43.4% in Palau to 91.8% in the Northern Mariana Islands. HPV vaccination series completion coverage is >90% in the Northern Mariana Islands and is on track to meet WHO goals by 2030 in American Samoa. Assessment of adolescent vaccination coverage can help immunization programs monitor progress toward regional goals and identify populations and areas with low coverage. Implementing evidence-based strategies to increase vaccine access and coverage would benefit jurisdictions with lagging coverage., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.
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- 2024
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5. Disparities in COVID-19 vaccine uptake, attitudes, and experiences between food system and non-food system essential workers.
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Smarsh BL, Yankey D, Hung MC, Blanck HM, Kriss JL, Flynn MA, Lu PJ, McGarry S, Eastlake AC, Lainz AR, Singleton JA, and Lincoln JM
- Abstract
The COVID-19 pandemic has disproportionately affected the health of food system (FS) essential workers compared with other essential and non-essential workers. Even greater disparity exists for workers in certain FS work settings and for certain FS worker subpopulations. We analyzed essential worker respondents ( n = 151,789) in May-November 2021 data from the National Immunization Survey Adult COVID Module (NIS-ACM) to assess and characterize COVID-19 vaccination uptake (≥1 dose) and intent (reachable, reluctant), attitudes about COVID-19 and the vaccine, and experiences and difficulties getting the vaccine. We compared rates, overall and by certain characteristics, between workers of the same group, and between FS ( n = 17,414) and non-food system (NFS) worker groups ( n = 134,375), to determine if differences exist. FS worker groups were classified as "agriculture, forestry, fishing, or hunting" (AFFH; n = 2,730); "food manufacturing facility" (FMF; n = 3,495); and "food and beverage store" (FBS; n = 11,189). Compared with NFS workers, significantly lower percentages of FS workers reported ≥1 dose of COVID-19 vaccine or vaccine requirements at work or school, but overall vaccine experiences and difficulties among vaccinated FS workers were statistically similar to NFS workers. When we examined intent regarding COVID-19 vaccination among unvaccinated FS workers compared with NFS counterparts, we found a higher percentage of FMF and FBS workers were reachable whereas a higher percentage of AFFH workers were reluctant about vaccination, with differences by sociodemographic characteristics. Overall, results showed differences in uptake, intent, and attitudes between worker groups and by some sociodemographic characteristics. The findings reflect the diversity of FS workers and underscore the importance of collecting occupational data to assess health inequalities and of tailoring efforts to worker groups to improve confidence and uptake of vaccinations for infectious diseases such as COVID-19. The findings can inform future research, adult infectious disease interventions, and emergency management planning., Competing Interests: Declaration of Conflicting Interests Authors have no conflicts of interest to disclose.
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- 2024
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6. Influenza, Updated COVID-19, and Respiratory Syncytial Virus Vaccination Coverage Among Adults - United States, Fall 2023.
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Black CL, Kriss JL, Razzaghi H, Patel SA, Santibanez TA, Meghani M, Tippins A, Stokley S, Chatham-Stephens K, Dowling NF, Peacock G, and Singleton JA
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- Adult, Pregnancy, Female, Humans, United States epidemiology, Adolescent, COVID-19 Vaccines, Vaccination Coverage, Vaccination, Influenza, Human epidemiology, Influenza, Human prevention & control, COVID-19 epidemiology, COVID-19 prevention & control, Influenza Vaccines, Respiratory Syncytial Virus, Human
- Abstract
During the 2023-24 respiratory virus season, the Advisory Committee on Immunization Practices recommends influenza and COVID-19 vaccines for all persons aged ≥6 months, and respiratory syncytial virus (RSV) vaccine is recommended for persons aged ≥60 years (using shared clinical decision-making), and for pregnant persons. Data from the National Immunization Survey-Adult COVID Module, a random-digit-dialed cellular telephone survey of U.S. adults aged ≥18 years, are used to monitor influenza, COVID-19, and RSV vaccination coverage. By December 9, 2023, an estimated 42.2% and 18.3% of adults aged ≥18 years reported receiving an influenza and updated 2023-2024 COVID-19 vaccine, respectively; 17.0% of adults aged ≥60 years had received RSV vaccine. Coverage varied by demographic characteristics. Overall, approximately 27% and 41% of adults aged ≥18 years and 53% of adults aged ≥60 years reported that they definitely or probably will be vaccinated or were unsure whether they would be vaccinated against influenza, COVID-19, and RSV, respectively. Strong provider recommendations for and offers of vaccination could increase influenza, COVID-19, and RSV vaccination coverage. Immunization programs and vaccination partners are encouraged to use these data to understand vaccination patterns and attitudes toward vaccination in their jurisdictions to guide planning, implementation, strengthening, and evaluation of vaccination activities., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.
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- 2023
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7. Behavioral and Social Drivers of COVID-19 Vaccination in the United States, August-November 2021.
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Bonner KE, Vashist K, Abad NS, Kriss JL, Meng L, Lee JT, Wilhelm E, Lu PJ, Carter RJ, Boone K, Baack B, Masters NB, Weiss D, Black C, Huang Q, Vangala S, Albertin C, Szilagyi PG, Brewer NT, and Singleton JA
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- Adult, Female, Humans, United States epidemiology, Cross-Sectional Studies, Vaccination, Cognition, COVID-19 Vaccines, COVID-19 epidemiology, COVID-19 prevention & control
- Abstract
Introduction: COVID-19 vaccines are safe, effective, and widely available, but many adults in the U.S. have not been vaccinated for COVID-19. This study examined the associations between behavioral and social drivers of vaccination with COVID-19 vaccine uptake in the U.S. adults and their prevalence by region., Methods: A nationally representative sample of U.S. adults participated in a cross-sectional telephone survey in August-November 2021; the analysis was conducted in January 2022. Survey questions assessed self-reported COVID-19 vaccine initiation, demographics, and behavioral and social drivers of vaccination., Results: Among the 255,763 respondents, 76% received their first dose of COVID-19 vaccine. Vaccine uptake was higher among respondents aged ≥75 years (94%), females (78%), and Asian non-Hispanic people (94%). The drivers of vaccination most strongly associated with uptake included higher anticipated regret from nonvaccination, risk perception, and confidence in vaccine safety and importance, followed by work- or school-related vaccination requirements, social norms, and provider recommendation (all p<0.05). The direction of association with uptake varied by reported level of difficulty in accessing vaccines. The prevalence of all of these behavioral and social drivers of vaccination was highest in the Northeast region and lowest in the Midwest and South., Conclusions: This nationally representative survey found that COVID-19 vaccine uptake was most strongly associated with greater anticipated regret, risk perception, and confidence in vaccine safety and importance, followed by vaccination requirements and social norms. Interventions that leverage these social and behavioral drivers of vaccination have the potential to increase COVID-19 vaccine uptake and could be considered for other vaccine introductions., (Published by Elsevier Inc.)
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- 2023
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8. Characteristics of the Moveable Middle: Opportunities Among Adults Open to COVID-19 Vaccination.
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Omari A, Boone KD, Zhou T, Lu PJ, Kriss JL, Hung MC, Carter RJ, Black C, Weiss D, Masters NB, Lee JT, Brewer NT, Szilagyi PG, and Singleton JA
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- Adolescent, Adult, Humans, United States epidemiology, Vaccination psychology, Vaccination statistics & numerical data, COVID-19 epidemiology, COVID-19 prevention & control, COVID-19 Vaccines therapeutic use, Patient Acceptance of Health Care ethnology, Patient Acceptance of Health Care psychology, Patient Acceptance of Health Care statistics & numerical data
- Abstract
Introduction: Focusing on subpopulations that express the intention to receive a COVID-19 vaccination but are unvaccinated may improve the yield of COVID-19 vaccination efforts., Methods: A nationally representative sample of 789,658 U.S. adults aged ≥18 years participated in the National Immunization Survey Adult COVID Module from May 2021 to April 2022. The survey assessed respondents' COVID-19 vaccination status and intent by demographic characteristics (age, urbanicity, educational attainment, region, insurance, income, and race/ethnicity). This study compared composition and within-group estimates of those who responded that they definitely or probably will get vaccinated or are unsure (moveable middle) from the first and last month of data collection., Results: Because vaccination uptake increased over the study period, the moveable middle declined among persons aged ≥18 years. Adults aged 18-39 years and suburban residents comprised most of the moveable middle in April 2022. Groups with the largest moveable middles in April 2022 included persons with no insurance (10%), those aged 18-29 years (8%), and those with incomes below poverty (8%), followed by non-Hispanic Native Hawaiian or other Pacific Islander (7%), non-Hispanic multiple or other race (6%), non-Hispanic American Indian or Alaska Native persons (6%), non-Hispanic Black or African American persons (6%), those with below high school education (6%), those with high school education (5%), and those aged 30-39 years (5%)., Conclusions: A sizable percentage of adults open to receiving COVID-19 vaccination remain in several demographic groups. Emphasizing engagement of persons who are unvaccinated in some racial/ethnic groups, aged 18-39 years, without health insurance, or with lower income may reach more persons open to vaccination., (Published by Elsevier Inc.)
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- 2023
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9. The Association of Reported Experiences of Racial and Ethnic Discrimination in Health Care with COVID-19 Vaccination Status and Intent - United States, April 22, 2021-November 26, 2022.
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Elam-Evans LD, Jones CP, Vashist K, Yankey D, Smith CS, Kriss JL, Lu PJ, St Louis ME, Brewer NT, and Singleton JA
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- Adolescent, Adult, Humans, COVID-19 Vaccines administration & dosage, Ethnicity, Health Services Accessibility, United States epidemiology, COVID-19 epidemiology, COVID-19 prevention & control, Racism, Healthcare Disparities
- Abstract
In 2021, the CDC Director declared that racism is a serious threat to public health,* reflecting a growing awareness of racism as a cause of health inequities, health disparities, and disease. Racial and ethnic disparities in COVID-19-related hospitalization and death (1,2) illustrate the need to examine root causes, including experiences of discrimination. This report describes the association between reported experiences of discrimination in U.S. health care settings and COVID-19 vaccination status and intent to be vaccinated by race and ethnicity during April 22, 2021-November 26, 2022, based on the analysis of interview data collected from 1,154,347 respondents to the National Immunization Survey-Adult COVID Module (NIS-ACM). Overall, 3.5% of adults aged ≥18 years reported having worse health care experiences compared with persons of other races and ethnicities (i.e., they experienced discrimination), with significantly higher percentages reported by persons who identified as non-Hispanic Black or African American (Black) (10.7%), non-Hispanic American Indian or Alaska Native (AI/AN) (7.2%), non-Hispanic multiple or other race (multiple or other race) (6.7%), Hispanic or Latino (Hispanic) (4.5%), non-Hispanic Native Hawaiian or other Pacific Islander (NHOPI) (3.9%), and non-Hispanic Asian (Asian) (2.8%) than by non-Hispanic White (White) persons (1.6%). Unadjusted differences in prevalence of being unvaccinated against COVID-19 among respondents reporting worse health care experiences than persons of other races and ethnicities compared with those who reported that their health care experiences were the same as those of persons of other races and ethnicities were statistically significant overall (5.3) and for NHOPI (19.2), White (10.5), multiple or other race (5.7), Black (4.6), Asian (4.3), and Hispanic (2.6) adults. Findings were similar for vaccination intent. Eliminating inequitable experiences in health care settings might help reduce some disparities in receipt of a COVID-19 vaccine., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.
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- 2023
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10. Racial and Ethnic Disparities in Mpox Cases and Vaccination Among Adult Males - United States, May-December 2022.
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Kota KK, Hong J, Zelaya C, Riser AP, Rodriguez A, Weller DL, Spicknall IH, Kriss JL, Lee F, Boersma P, Hurley E, Hicks P, Wilkins C, Chesson H, Concepción-Acevedo J, Ellington S, Belay E, and Mermin J
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- Male, Adult, Humans, United States epidemiology, Adolescent, Ethnicity, Homosexuality, Male, Minority Groups, Vaccination, White, Mpox (monkeypox), Sexual and Gender Minorities
- Abstract
As of December 31, 2022, a total of 29,939 monkeypox (mpox) cases* had been reported in the United States, 93.3% of which occurred in adult males. During May 10-December 31, 2022, 723,112 persons in the United States received the first dose in a 2-dose mpox (JYNNEOS)
† vaccination series; 89.7% of these doses were administered to males (1). The current mpox outbreak has disproportionately affected gay, bisexual, and other men who have sex with men (MSM) and racial and ethnic minority groups (1,2). To examine racial and ethnic disparities in mpox incidence and vaccination rates, rate ratios (RRs) for incidence and vaccination rates and vaccination-to-case ratios were calculated, and trends in these measures were assessed among males aged ≥18 years (males) (3). Incidence in males in all racial and ethnic minority groups except non-Hispanic Asian (Asian) males was higher than that among non-Hispanic White (White) males. At the peak of the outbreak in August 2022, incidences among non-Hispanic Black or African American (Black) and Hispanic or Latino (Hispanic) males were higher than incidence among White males (RR = 6.9 and 4.1, respectively). Overall, vaccination rates were higher among males in racial and ethnic minority groups than among White males. However, the vaccination-to-case ratio was lower among Black (8.8) and Hispanic (16.2) males than among White males (42.5) during the full analytic period, indicating that vaccination rates among Black and Hispanic males were not proportionate to the elevated incidence rates (i.e., these groups had a higher unmet vaccination need). Efforts to increase vaccination among Black and Hispanic males might have resulted in the observed relative increased rates of vaccination; however, these increases were only partially successful in reducing overall incidence disparities. Continued implementation of equity-based vaccination strategies is needed to further increase vaccination rates and reduce the incidence of mpox among all racial and ethnic groups. Recent modeling data (4) showing that, based on current vaccination coverage levels, many U.S. jurisdictions are vulnerable to resurgent mpox outbreaks, underscore the need for continued vaccination efforts, particularly among racial and ethnic minority groups., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2023
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11. JYNNEOS Vaccination Coverage Among Persons at Risk for Mpox - United States, May 22, 2022-January 31, 2023.
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Owens LE, Currie DW, Kramarow EA, Siddique S, Swanson M, Carter RJ, Kriss JL, Boersma PM, Lee FC, Spicknall I, Hurley E, Zlotorzynska M, and Gundlapalli AV
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- Humans, United States, Adolescent, Adult, Vaccination Coverage, Vaccination, Vaccines, Attenuated, Mpox (monkeypox), Smallpox Vaccine
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From May 2022 through the end of January 2023, approximately 30,000 cases of monkeypox (mpox) have been reported in the United States and >86,000 cases reported internationally.* JYNNEOS (Modified Vaccinia Ankara vaccine, Bavarian Nordic) is recommended for subcutaneous administration to persons at increased risk for mpox (1,2) and has been demonstrated to provide protection against infection (3-5). To increase the total number of vaccine doses available, the Food and Drug Administration (FDA) issued an Emergency Use Authorization (EUA) on August 9, 2022, recommending administration of the vaccine intradermally (0.1 mL per dose) for persons aged ≥18 years who are recommended to receive it (6); intradermal administration can generate an equivalent immune response to that achieved through subcutaneous injection using approximately one fifth the subcutaneous dose (7). CDC analyzed JYNNEOS vaccine administration data submitted to CDC from jurisdictional immunization information systems (IIS)
† to assess the impact of the EUA and to estimate vaccination coverage among the population at risk for mpox. During May 22, 2022-January 31, 2023, a total of 1,189,651 JYNNEOS doses (734,510 first doses and 452,884 second doses)§ were administered. Through the week of August 20, 2022, the predominant route of administration was subcutaneous, after which intradermal administration became predominant, in accordance with FDA guidance. As of January 31, 2023, 1-dose and 2-dose (full vaccination) coverage among persons at risk for mpox is estimated to have reached 36.7% and 22.7%, respectively. Despite a steady decline in mpox cases from a 7-day daily average of more than 400 cases on August 1, 2022, to five cases on January 31, 2023, vaccination for persons at risk for mpox continues to be recommended (1). Targeted outreach and continued access to and availability of mpox vaccines to persons at risk are important to help prevent and minimize the impact of a resurgence of mpox., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Maria Zlotorzynska reports receipt of consulting fees from Springboard HealthLab for data analyses unrelated to the current work. No other potential conflicts of interest were disclosed.- Published
- 2023
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12. COVID-19 Bivalent Booster Vaccination Coverage and Intent to Receive Booster Vaccination Among Adolescents and Adults - United States, November-December 2022.
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Lu PJ, Zhou T, Santibanez TA, Jain A, Black CL, Srivastav A, Hung MC, Kriss JL, Schorpp S, Yankey D, Sterrett N, Fast HE, Razzaghi H, Elam-Evans LD, and Singleton JA
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- Humans, Adult, United States epidemiology, Adolescent, Vaccination Coverage, SARS-CoV-2, Vaccination, COVID-19 Vaccines, COVID-19 epidemiology, COVID-19 prevention & control
- Abstract
COVID-19 vaccine booster doses are safe and maintain protection after receipt of a primary vaccination series and reduce the risk for serious COVID-19-related outcomes, including emergency department visits, hospitalization, and death (1,2). CDC recommended an updated (bivalent) booster for adolescents aged 12-17 years and adults aged ≥18 years on September 1, 2022 (3). The bivalent booster is formulated to protect against the Omicron BA.4 and BA.5 subvariants of SARS-CoV-2 as well as the original (ancestral) strain (3). Based on data collected during October 30-December 31, 2022, from the National Immunization Survey-Child COVID Module (NIS-CCM) (4), among all adolescents aged 12-17 years who completed a primary series, 18.5% had received a bivalent booster dose, 52.0% had not yet received a bivalent booster but had parents open to booster vaccination for their child, 15.1% had not received a bivalent booster and had parents who were unsure about getting a booster vaccination for their child, and 14.4% had parents who were reluctant to seek booster vaccination for their child. Based on data collected during October 30-December 31, 2022, from the National Immunization Survey-Adult COVID Module (NIS-ACM) (4), 27.1% of adults who had completed a COVID-19 primary series had received a bivalent booster, 39.4% had not yet received a bivalent booster but were open to receiving booster vaccination, 12.4% had not yet received a bivalent booster and were unsure about getting a booster vaccination, and 21.1% were reluctant to receive a booster. Adolescents and adults in rural areas had a much lower primary series completion rate and up-to-date vaccination coverage. Bivalent booster coverage was lower among non-Hispanic Black or African American (Black) and Hispanic or Latino (Hispanic) adolescents and adults compared with non-Hispanic White (White) adolescents and adults. Among adults who were open to receiving booster vaccination, 58.9% reported not having received a provider recommendation for booster vaccination, 16.9% had safety concerns, and 4.4% reported difficulty getting a booster vaccine. Among adolescents with parents who were open to getting a booster vaccination for their child, 32.4% had not received a provider recommendation for any COVID-19 vaccination, and 11.8% had parents who reported safety concerns. Although bivalent booster vaccination coverage among adults differed by factors such as income, health insurance status, and social vulnerability index (SVI), these factors were not associated with differences in reluctance to seek booster vaccination. Health care provider recommendations for COVID-19 vaccination; dissemination of information by trusted messengers about the continued risk for COVID-19-related illness and the benefits and safety of bivalent booster vaccination; and reducing barriers to vaccination could improve COVID-19 bivalent booster coverage among adolescents and adults., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Laurie D. Elam-Evans is chair of the Epidemiology Section of the American Public Health Association. No other potential conflicts of interest were disclosed.
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- 2023
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13. Cluster analysis of adults unvaccinated for COVID-19 based on behavioral and social factors, National Immunization Survey-Adult COVID Module, United States.
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Meng L, Masters NB, Lu PJ, Singleton JA, Kriss JL, Zhou T, Weiss D, and Black CL
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- Adult, Male, Humans, Female, Middle Aged, Social Factors, Immunization, Cluster Analysis, COVID-19 Vaccines, COVID-19 epidemiology, COVID-19 prevention & control
- Abstract
By the end of 2021, approximately 15% of U.S. adults remained unvaccinated against COVID-19, and vaccination initiation rates had stagnated. We used unsupervised machine learning (K-means clustering) to identify clusters of unvaccinated respondents based on Behavioral and Social Drivers (BeSD) of COVID-19 vaccination and compared these clusters to vaccinated participants to better understand social/behavioral factors of non-vaccination. The National Immunization Survey Adult COVID Module collects data on U.S. adults from September 26-December 31,2021 (n = 187,756). Among all participants, 51.6% were male, with a mean age of 61 years, and the majority were non-Hispanic White (62.2%), followed by Hispanic (17.2%), Black (11.9%), and others (8.7%). K-means clustering procedure was used to classify unvaccinated participants into three clusters based on 9 survey BeSD items, including items assessing COVID-19 risk perception, social norms, vaccine confidence, and practical issues. Among unvaccinated adults (N = 23,397), 3 clusters were identified: the "Reachable" (23%), "Less reachable" (27%), and the "Least reachable" (50%). The least reachable cluster reported the lowest concern about COVID-19, mask-wearing behavior, perceived vaccine confidence, and were more likely to be male, non-Hispanic White, with no health conditions, from rural counties, have previously had COVID-19, and have not received a COVID-19 vaccine recommendation from a healthcare provider. This study identified, described, and compared the characteristics of the three unvaccinated subgroups. Public health practitioners, healthcare providers and community leaders can use these characteristics to better tailor messaging for each sub-population. Our findings may also help inform decisionmakers exploring possible policy interventions., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Published by Elsevier Inc.)
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- 2023
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14. COVID-19 Booster Dose Vaccination Coverage and Factors Associated with Booster Vaccination among Adults, United States, March 2022.
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Lu PJ, Srivastav A, Vashist K, Black CL, Kriss JL, Hung MC, Meng L, Zhou T, Yankey D, Masters NB, Fast HE, Razzaghi H, and Singleton JA
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- Adult, Humans, United States epidemiology, Vaccination Coverage, Vaccination, COVID-19 Vaccines, COVID-19 epidemiology, COVID-19 prevention & control
- Abstract
The Centers for Disease Control and Prevention recommends a COVID-19 vaccine booster dose for all persons >18 years of age. We analyzed data from the National Immunization Survey-Adult COVID Module collected during February 27-March 26, 2022 to assess COVID-19 booster dose vaccination coverage among adults. We used multivariable logistic regression analysis to assess factors associated with vaccination. COVID-19 booster dose coverage among fully vaccinated adults increased from 25.7% in November 2021 to 63.4% in March 2022. Coverage was lower among non-Hispanic Black (52.7%), and Hispanic (55.5%) than non-Hispanic White adults (67.7%). Coverage was 67.4% among essential healthcare personnel, 62.2% among adults who had a disability, and 69.9% among adults who had medical conditions. Booster dose coverage was not optimal, and disparities by race/ethnicity and other factors are apparent in coverage uptake. Tailored strategies are needed to educate the public and reduce disparities in COVID-19 vaccination coverage.
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- 2023
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15. Reduced Risk for Mpox After Receipt of 1 or 2 Doses of JYNNEOS Vaccine Compared with Risk Among Unvaccinated Persons - 43 U.S. Jurisdictions, July 31-October 1, 2022.
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Payne AB, Ray LC, Cole MM, Canning M, Houck K, Shah HJ, Farrar JL, Lewis NM, Fothergill A, White EB, Feldstein LR, Roper LE, Lee F, Kriss JL, Sims E, Spicknall IH, Nakazawa Y, Gundlapalli AV, Shimabukuro T, Cohen AL, Honein MA, Mermin J, and Payne DC
- Subjects
- Humans, Male, Homosexuality, Male, United States epidemiology, United States Food and Drug Administration, Smallpox Vaccine administration & dosage, Sexual and Gender Minorities, Mpox (monkeypox) prevention & control
- Abstract
As of October 28, 2022, a total of 28,244* monkeypox (mpox) cases have been reported in the United States during an outbreak that has disproportionately affected gay, bisexual, and other men who have sex with men (MSM) (1). JYNNEOS vaccine (Modified Vaccinia Ankara vaccine, Bavarian Nordic), administered subcutaneously as a 2-dose (0.5 mL per dose) series (with doses administered 4 weeks apart), was approved by the Food and Drug Administration (FDA) in 2019 to prevent smallpox and mpox disease (2); an FDA Emergency Use Authorization issued on August 9, 2022, authorized intradermal administration of 0.1 mL per dose, increasing the number of persons who could be vaccinated with the available vaccine supply
† (3). A previous comparison of mpox incidence during July 31-September 3, 2022, among unvaccinated, but vaccine-eligible men aged 18-49 years and those who had received ≥1 JYNNEOS vaccine dose in 32 U.S. jurisdictions, found that incidence among unvaccinated persons was 14 times that among vaccinated persons (95% CI = 5.0-41.0) (4). During September 4-October 1, 2022, a total of 205,504 persons received JYNNEOS vaccine dose 2 in the United States.§ To further examine mpox incidence among persons who were unvaccinated and those who had received either 1 or 2 JYNNEOS doses, investigators analyzed data on 9,544 reported mpox cases among men¶ aged 18-49 years during July 31-October 1, 2022, from 43 U.S. jurisdictions,** by vaccination status. During this study period, mpox incidence (cases per 100,000 population at risk) among unvaccinated persons was 7.4 (95% CI = 6.0-9.1) times that among persons who received only 1 dose of JYNNEOS vaccine ≥14 days earlier and 9.6 (95% CI = 6.9-13.2) times that among persons who received dose 2 ≥14 days earlier. The observed distribution of subcutaneous and intradermal routes of administration of dose 1 among vaccinated persons with mpox was not different from the expected distribution. This report provides additional data suggesting JYNNEOS vaccine provides protection against mpox, irrespective of whether the vaccine is administered intradermally or subcutaneously. The degree and durability of such protection remains unclear. Persons eligible for mpox vaccination should receive the complete 2-dose series to optimize strength of protection†† (5)., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2022
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16. Employer requirements and COVID-19 vaccination and attitudes among healthcare personnel in the U.S.: Findings from National Immunization Survey Adult COVID Module, August - September 2021.
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Lee JT, Sean Hu S, Zhou T, Bonner KE, Kriss JL, Wilhelm E, Carter RJ, Holmes C, de Perio MA, Lu PJ, Nguyen KH, Brewer NT, and Singleton JA
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- Adult, United States, Humans, COVID-19 Vaccines, Vaccination, Health Personnel, Surveys and Questionnaires, Attitude, Delivery of Health Care, Influenza Vaccines, Influenza, Human prevention & control, COVID-19 epidemiology, COVID-19 prevention & control
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Introduction: Employer vaccination requirements have been used to increase vaccination uptake among healthcare personnel (HCP). In summer 2021, HCP were the group most likely to have employer requirements for COVID-19 vaccinations as healthcare facilities led the implementation of such requirements. This study examined the association between employer requirements and HCP's COVID-19 vaccination status and attitudes about the vaccine., Methods: Participants were a national representative sample of United States (US) adults who completed the National Immunization Survey Adult COVID Module (NIS-ACM) during August-September 2021. Respondents were asked about COVID-19 vaccination and intent, requirements for vaccination, place of work, attitudes surrounding vaccinations, and sociodemographic variables. This analysis focused on HCP respondents. We first calculated the weighted proportion reporting COVID-19 vaccination for HCP by sociodemographic variables. Then we computed unadjusted and adjusted prevalence ratios for vaccination coverage and key indicators on vaccine attitudes, comparing HCP based on individual self-report of vaccination requirements., Results: Of 12,875 HCP respondents, 41.5% reported COVID-19 vaccination employer requirements. Among HCP with vaccination requirements, 90.5% had been vaccinated against COVID-19, as compared to 73.3% of HCP without vaccination requirements-a pattern consistent across sociodemographic groups. Notably, the greatest differences in uptake between HCP with and without employee requirements were seen in sociodemographic subgroups with the lowest vaccination uptake, e.g., HCP aged 18-29 years, HCP with high school or less education, HCP living below poverty, and uninsured HCP. In every sociodemographic subgroup examined, vaccine uptake was more equitable among HCP with vaccination requirements than in HCP without. Finally, HCP with vaccination requirements were also more likely to express confidence in the vaccine's safety (68.3% vs. 60.1%) and importance (89.6% vs 79.6%)., Conclusion: In a large national US sample, employer requirements were associated with higher and more equitable HCP vaccination uptake across all sociodemographic groups examined. Our findings suggest that employer requirements can contribute to improving COVID-19 vaccination coverage, similar to patterns seen for other vaccines., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Published by Elsevier Ltd.)
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- 2022
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17. Geographic Heterogeneity in Behavioral and Social Drivers of COVID-19 Vaccination.
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Masters NB, Zhou T, Meng L, Lu PJ, Kriss JL, Black C, Omari A, Boone K, Weiss D, Carter RJ, Brewer NT, and Singleton JA
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- Humans, Adult, COVID-19 Vaccines, Vaccination, Patient Acceptance of Health Care, Papillomavirus Vaccines, COVID-19 epidemiology, COVID-19 prevention & control
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Introduction: Little is known about how the drivers of COVID-19 vaccination vary across the U.S. To inform vaccination outreach efforts, this study explores geographic variation in correlates of COVID-19 nonvaccination among adults., Methods: Participants were a nationally representative sample of U.S. adults identified through random-digit dialing for the National Immunization Survey-Adult COVID Module. Analyses examined the geographic and temporal landscape of constructs in the Behavioral and Social Drivers of Vaccination Framework among unvaccinated respondents from May 2021 to December 2021 (n=531,798) and sociodemographic and geographic disparities and Behavioral and Social Drivers of Vaccination predictors of COVID-19 nonvaccination from October 2021 to December 2021 (n=187,756)., Results: National coverage with at least 1 dose of COVID-19 vaccine was 79.3% by December 2021, with substantial geographic heterogeneity. Regions with the largest proportion of unvaccinated persons who would probably get a COVID-19 vaccine or were unsure resided in the Southeast and Midwest (Health and Human Services Regions 4 and 5). Both regions had similar temporal trends regarding concerns about COVID-19 and confidence in vaccine importance, although the Southeast had especially low confidence in vaccine safety in December 2021, lowest in Florida (5.5%) and highest in North Carolina (18.0%). The strongest Behavioral and Social Drivers of Vaccination correlate of not receiving a COVID-19 vaccination was lower confidence in COVID-19 vaccine importance (adjusted prevalence ratio=5.19, 95% CI=4.93, 5.47; strongest in the Northeast, Southwest, and Mountain West and weakest in the Southeast and Midwest). Other Behavioral and Social Drivers of Vaccination correlates also varied by region., Conclusions: Contributors to nonvaccination showed substantial geographic heterogeneity. Strategies to improve COVID-19 vaccination uptake may need to be tailored regionally., (Published by Elsevier Inc.)
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- 2022
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18. COVID-19 Vaccination and Intent for Vaccination of Adults With Reported Medical Conditions.
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Lu PJ, Hung MC, Jackson HL, Kriss JL, Srivastav A, Yankey D, Santibanez TA, Lee JT, Meng L, Razzaghi H, Black CL, Elam-Evans LD, and Singleton JA
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- Adult, Humans, Adolescent, COVID-19 Vaccines, Vaccination, Vaccination Coverage, COVID-19 epidemiology, COVID-19 prevention & control, Vaccines
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Introduction: Individuals with certain medical conditions are at substantially increased risk for severe illness from COVID-19. The purpose of this study is to assess COVID-19 vaccination among U.S. adults with reported medical conditions., Methods: Data from the National Immunization Survey-Adult COVID Module collected during August 1-September 25, 2021 were analyzed in 2022 to assess COVID-19 vaccination status, intent, vaccine confidence, behavior, and experience among adults with reported medical conditions. Unadjusted and age-adjusted prevalence ratios (PRs and APRs) were generated using logistic regression and predictive marginals., Results: Overall, COVID-19 vaccination coverage with ≥1 dose was 81.8% among adults with reported medical conditions, and coverage was significantly higher compared with those without such conditions (70.3%) Among adults aged ≥18 years with medical conditions, COVID-19 vaccination coverage was significantly higher among those with a provider recommendation (86.5%) than those without (76.5%). Among all respondents, 9.2% of unvaccinated adults with medical conditions reported they were willing or open to vaccination. Adults who reported high risk medical conditions were more likely to report receiving a provider recommendation, often or always wearing masks during the last 7 days, concerning about getting COVID-19, thinking the vaccine is safe, and believing a COVID-19 vaccine is important for protection from COVID-19 infection than those without such conditions., Conclusions: Approximately 18.0% of those with reported medical conditions were unvaccinated. Receiving a provider recommendation was significantly associated with vaccination, reinforcing that provider recommendation is an important approach to increase vaccination coverage. Ensuring access to vaccine, addressing vaccination barriers, and increasing vaccine confidence can improve vaccination coverage among unvaccinated adults., (Copyright © 2022 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.)
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- 2022
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19. Receipt of First and Second Doses of JYNNEOS Vaccine for Prevention of Monkeypox - United States, May 22-October 10, 2022.
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Kriss JL, Boersma PM, Martin E, Reed K, Adjemian J, Smith N, Carter RJ, Tan KR, Srinivasan A, McGarvey S, McGehee J, Henderson D, Aleshire N, and Gundlapalli AV
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- United States epidemiology, Humans, Adolescent, Adult, Aged, Vaccination, Mpox (monkeypox) epidemiology, Mpox (monkeypox) prevention & control, Smallpox Vaccine, Vaccinia, Vaccines
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Vaccination with JYNNEOS vaccine (Modified Vaccinia Ankara vaccine, Bavarian Nordic) to prevent monkeypox commenced shortly after confirmation of the first monkeypox case in the current outbreak in the United States on May 17, 2022 (1). To date, more than 27,000 cases have been reported across all 50 states, the District of Columbia (DC), and Puerto Rico.* JYNNEOS vaccine is licensed by the Food and Drug Administration (FDA) as a 0.5-mL 2-dose series administered subcutaneously 28 days apart to prevent smallpox and monkeypox infections (2) and has been found to provide protection against monkeypox infection during the current outbreak (3). The U.S. Department of Health and Human Services (HHS) allocated 1.1 million vials of JYNNEOS vaccine from the Strategic National Stockpile, with doses allocated to jurisdictions based on case counts and estimated size of population at risk (4). However, initial vaccine supplies were severely constrained relative to vaccine demand during the expanding outbreak. Some jurisdictions with highest incidence responded by prioritizing first dose administration during May-July (5,6). The FDA emergency use authorization (EUA) of 0.1 mL dosing for intradermal administration of JYNNEOS for persons aged ≥18 years on August 9, 2022, substantially expanded available vaccine supply
† (7). The U.S. vaccination strategy focuses primarily on persons with known or presumed exposures to monkeypox (8) or those at high risk for occupational exposure (9). Data on monkeypox vaccine doses administered and reported to CDC by U.S. jurisdictions were analyzed to assess vaccine administration and completion of the 2-dose series. A total of 931,155 doses of JYNNEOS vaccine were administered and reported to the CDC by 55 U.S. jurisdictions during May 22-October 10, 2022. Among persons who received ≥1 dose, 51.4% were non-Hispanic White (White), 22.5% were Hispanic or Latino (Hispanic), and 12.6% were non-Hispanic Black or African American (Black). The percentages of vaccine recipients who were Black (5.6%) and Hispanic (15.5%) during May 22-June 25 increased to 13.3% and 22.7%, respectively, during July 31-October 10. Among 496,888 persons who received a first dose and were eligible for a second dose during the study period, 57.6% received their second dose. Second dose receipt was highest among older adults, White persons, and those residing in the South U.S. Census Bureau Region. Tracking and addressing disparities in vaccination can reduce inequities, and equitable access to and acceptance of vaccine should be an essential factor in planning vaccination programs, events, and strategies. Receipt of both first and second doses is necessary for optimal protection against Monkeypox virus infection., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Nathaniel Smith reports support from the Association of State and Territorial Health Officials for travel to meetings while serving in an unpaid position as President (September 2019–July 2020). No other potential conflicts of interest were disclosed.- Published
- 2022
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20. Incidence of Monkeypox Among Unvaccinated Persons Compared with Persons Receiving ≥1 JYNNEOS Vaccine Dose - 32 U.S. Jurisdictions, July 31-September 3, 2022.
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Payne AB, Ray LC, Kugeler KJ, Fothergill A, White EB, Canning M, Farrar JL, Feldstein LR, Gundlapalli AV, Houck K, Kriss JL, Lewis NM, Sims E, Smith DK, Spicknall IH, Nakazawa Y, Damon IK, Cohn AC, and Payne DC
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- Homosexuality, Male, Humans, Incidence, Male, United States epidemiology, Mpox (monkeypox) epidemiology, Mpox (monkeypox) prevention & control, Sexual and Gender Minorities, Smallpox Vaccine
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Human monkeypox is caused by Monkeypox virus (MPXV), an Orthopoxvirus, previously rare in the United States (1). The first U.S. case of monkeypox during the current outbreak was identified on May 17, 2022 (2). As of September 28, 2022, a total of 25,341 monkeypox cases have been reported in the United States.* The outbreak has disproportionately affected gay, bisexual, and other men who have sex with men (MSM) (3). JYNNEOS vaccine (Modified Vaccinia Ankara vaccine, Bavarian Nordic), administered subcutaneously as a 2-dose (0.5 mL per dose) series with doses administered 4 weeks apart, was approved by the Food and Drug Administration (FDA) in 2019 to prevent smallpox and monkeypox infection (4). U.S. distribution of JYNNEOS vaccine as postexposure prophylaxis (PEP) for persons with known exposures to MPXV began in May 2022. A U.S. national vaccination strategy
† for expanded PEP, announced on June 28, 2022, recommended subcutaneous vaccination of persons with known or presumed exposure to MPXV, broadening vaccination eligibility. FDA emergency use authorization (EUA) of intradermal administration of 0.1 mL of JYNNEOS on August 9, 2022, increased vaccine supply (5). As of September 28, 2022, most vaccine has been administered as PEP or expanded PEP. Because of the limited amount of time that has elapsed since administration of initial vaccine doses, as of September 28, 2022, relatively few persons in the current outbreak have completed the recommended 2-dose series.§ To examine the incidence of monkeypox among persons who were unvaccinated and those who had received ≥1 JYNNEOS vaccine dose, 5,402 reported monkeypox cases occurring among males¶ aged 18-49 years during July 31-September 3, 2022, were analyzed by vaccination status across 32 U.S. jurisdictions.** Average monkeypox incidence (cases per 100,000) among unvaccinated persons was 14.3 (95% CI = 5.0-41.0) times that among persons who received 1 dose of JYNNEOS vaccine ≥14 days earlier. Monitoring monkeypox incidence by vaccination status in timely surveillance data might provide early indications of vaccine-related protection that can be confirmed through other well-controlled vaccine effectiveness studies. This early finding suggests that a single dose of JYNNEOS vaccine provides some protection against monkeypox infection. The degree and durability of such protection is unknown, and it is recommended that people who are eligible for monkeypox vaccination receive the complete 2-dose series., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2022
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21. Coronavirus Disease 2019 (COVID-19) Vaccination Coverage, Intentions, Attitudes, and Barriers by Race/Ethnicity, Language of Interview, and Nativity-National Immunization Survey Adult COVID Module, 22 April 2021-29 January 2022.
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Ohlsen EC, Yankey D, Pezzi C, Kriss JL, Lu PJ, Hung MC, Bernabe MID, Kumar GS, Jentes E, Elam-Evans LD, Jackson H, Black CL, Singleton JA, Ladva CN, Abad N, and Lainz AR
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- Adult, Attitude, COVID-19 Vaccines, Haiti, Humans, Intention, Surveys and Questionnaires, United States, Vaccination, Vaccination Coverage, COVID-19 prevention & control, Ethnicity
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The National Immunization Survey Adult COVID Module used a random-digit-dialed phone survey during 22 April 2021-29 January 2022 to quantify coronavirus disease 2019 (COVID-19) vaccination, intent, attitudes, and barriers by detailed race/ethnicity, interview language, and nativity. Foreign-born respondents overall and within racial/ethnic categories had higher vaccination coverage (80.9%), higher intent to be vaccinated (4.2%), and lower hesitancy toward COVID-19 vaccination (6.0%) than US-born respondents (72.6%, 2.9%, and 15.8%, respectively). Vaccination coverage was significantly lower for certain subcategories of national origin or heritage (eg, Jamaican [68.6%], Haitian [60.7%], Somali [49.0%] in weighted estimates). Respondents interviewed in Spanish had lower vaccination coverage than interviewees in English but higher intent to be vaccinated and lower reluctance. Collection and analysis of nativity, detailed race/ethnicity and language information allow identification of disparities among racial/ethnic subgroups. Vaccination programs could use such information to implement culturally and linguistically appropriate focused interventions among communities with lower vaccination coverage., Competing Interests: Potential conflicts of interest. The authors reported no conflicts of interest. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest., (© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2022
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22. COVID-19 vaccination coverage and intent among women aged 18-49 years by pregnancy status, United States, April-November 2021.
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Razzaghi H, Yankey D, Vashist K, Lu PJ, Kriss JL, Nguyen KH, Lee J, Ellington S, Polen K, Bonner K, Jatlaoui TC, Wilhelm E, Meaney-Delman D, and Singleton JA
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- Adult, COVID-19 Vaccines, Female, Humans, Pregnancy, Surveys and Questionnaires, United States epidemiology, Vaccination, COVID-19 epidemiology, COVID-19 prevention & control, Vaccination Coverage
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Background: Pregnant and postpartum women are at increased risk for severe illness from COVID-19. We assessed COVID-19 vaccination coverage, intent, and attitudes among women of reproductive age overall and by pregnancy status in the United States., Methods: Data from the National Immunization Survey Adult COVID Module collected during April 22-November 27, 2021, were analyzed to assess COVID-19 vaccination (receipt of ≥1 dose), intent for vaccination, and attitudes towards vaccination among women aged 18-49 years overall and by pregnancy status (trying to get pregnant, currently pregnant, breastfeeding, and not trying to get pregnant or currently pregnant or breastfeeding). Logistic regression and predictive marginals were used to generate unadjusted and adjusted prevalence ratios (PRs and aPRs). Trend analyses were conducted to assess monthly changes in vaccination and intent., Results: Our analyses included 110,925 women aged 18-49 years. COVID-19 vaccination coverage (≥1 dose) was 63.2% overall (range from 53.3% in HHS Region 4 to 76.5% in HHS Region 1). Vaccination coverage was lowest among pregnant women (45.1%), followed by women who were trying to get pregnant (49.5%), women who were breastfeeding (51.5%), and all other women (64.9%). Non-Hispanic (NH) Black women who were pregnant or breastfeeding had significantly lower vaccination coverage (aPR: 0.74 and 0.66, respectively) than NH White women., Discussion: Our findings are consistent with other studies showing lower vaccination coverage among pregnant individuals, with substantially lower vaccination coverage among NH Black women who are pregnant or breastfeeding. Given the overlapping and disproportionate risks of COVID-19 and maternal mortality among Black women, it is critical that COVID-19 vaccination be strongly recommended for these populations and all women of reproductive age. Healthcare and public health providers may take advantage of every opportunity to encourage vaccination and enlist the assistance of community leaders, particularly in communities with low vaccination coverage., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Published by Elsevier Ltd.)
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- 2022
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23. COVID-19 Vaccination Coverage, by Race and Ethnicity - National Immunization Survey Adult COVID Module, United States, December 2020-November 2021.
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Kriss JL, Hung MC, Srivastav A, Black CL, Lindley MC, Lee JT, Koppaka R, Tsai Y, Lu PJ, Yankey D, Elam-Evans LD, and Singleton JA
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- Adolescent, Adult, COVID-19 Vaccines, Humans, Minority Groups, United States epidemiology, Vaccination, Vaccination Coverage, COVID-19 epidemiology, COVID-19 prevention & control, Ethnicity
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Some racial and ethnic minority groups have experienced disproportionately higher rates of COVID-19-related illness and mortality (1,2). Vaccination is highly effective in preventing severe COVID-19 illness and death (3), and equitable vaccination can reduce COVID-19-related disparities. CDC analyzed data from the National Immunization Survey Adult COVID Module (NIS-ACM), a random-digit-dialed cellular telephone survey of adults aged ≥18 years, to assess disparities in COVID-19 vaccination coverage by race and ethnicity among U.S. adults during December 2020-November 2021. Asian and non-Hispanic White (White) adults had the highest ≥1-dose COVID-19 vaccination coverage by the end of April 2021 (69.6% and 59.0%, respectively); ≥1-dose coverage was lower among Hispanic (47.3%), non-Hispanic Black or African American (Black) (46.3%), Native Hawaiian or other Pacific Islander (NH/OPI) (45.9%), multiple or other race (42.6%), and American Indian or Alaska Native (AI/AN) (38.7%) adults. By the end of November 2021, national ≥1-dose COVID-19 vaccination coverage was similar for Black (78.2%), Hispanic (81.3%), NH/OPI (75.7%), and White adults (78.7%); however, coverage remained lower for AI/AN (61.8%) and multiple or other race (68.0%) adults. Booster doses of COVID-19 vaccine are now recommended for all adults (4), but disparities in booster dose coverage among the fully vaccinated have become apparent (5). Tailored efforts including community partnerships and trusted sources of information could be used to increase vaccination coverage among the groups with identified persistent disparities and can help achieve vaccination equity and prevent new disparities by race and ethnicity in booster dose coverage., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.
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- 2022
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24. Estimating the early impact of the US COVID-19 vaccination programme on COVID-19 cases, emergency department visits, hospital admissions, and deaths among adults aged 65 years and older: an ecological analysis of national surveillance data.
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McNamara LA, Wiegand RE, Burke RM, Sharma AJ, Sheppard M, Adjemian J, Ahmad FB, Anderson RN, Barbour KE, Binder AM, Dasgupta S, Dee DL, Jones ES, Kriss JL, Lyons BC, McMorrow M, Payne DC, Reses HE, Rodgers LE, Walker D, Verani JR, and Schrag SJ
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- Aged, Aged, 80 and over, Female, Hospitals, Humans, Incidence, Male, United States epidemiology, Vaccination statistics & numerical data, COVID-19 epidemiology, COVID-19 Vaccines administration & dosage, Emergency Service, Hospital statistics & numerical data, Mortality trends, Patient Admission statistics & numerical data
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Background: In the USA, COVID-19 vaccines became available in mid-December, 2020, with adults aged 65 years and older among the first groups prioritised for vaccination. We estimated the national-level impact of the initial phases of the US COVID-19 vaccination programme on COVID-19 cases, emergency department visits, hospital admissions, and deaths among adults aged 65 years and older., Methods: We analysed population-based data reported to US federal agencies on COVID-19 cases, emergency department visits, hospital admissions, and deaths among adults aged 50 years and older during the period Nov 1, 2020, to April 10, 2021. We calculated the relative change in incidence among older age groups compared with a younger reference group for pre-vaccination and post-vaccination periods, defined by the week when vaccination coverage in a given age group first exceeded coverage in the reference age group by at least 1%; time lags for immune response and time to outcome were incorporated. We assessed whether the ratio of these relative changes differed when comparing the pre-vaccination and post-vaccination periods., Findings: The ratio of relative changes comparing the change in the COVID-19 case incidence ratio over the post-vaccine versus pre-vaccine periods showed relative decreases of 53% (95% CI 50 to 55) and 62% (59 to 64) among adults aged 65 to 74 years and 75 years and older, respectively, compared with those aged 50 to 64 years. We found similar results for emergency department visits with relative decreases of 61% (52 to 68) for adults aged 65 to 74 years and 77% (71 to 78) for those aged 75 years and older compared with adults aged 50 to 64 years. Hospital admissions declined by 39% (29 to 48) among those aged 60 to 69 years, 60% (54 to 66) among those aged 70 to 79 years, and 68% (62 to 73), among those aged 80 years and older, compared with adults aged 50 to 59 years. COVID-19 deaths also declined (by 41%, 95% CI -14 to 69 among adults aged 65-74 years and by 30%, -47 to 66 among those aged ≥75 years, compared with adults aged 50 to 64 years), but the magnitude of the impact of vaccination roll-out on deaths was unclear., Interpretation: The initial roll-out of the US COVID-19 vaccination programme was associated with reductions in COVID-19 cases, emergency department visits, and hospital admissions among older adults., Funding: None., Competing Interests: Declaration of interests We declare no competing interests., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
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- 2022
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25. Report of Health Care Provider Recommendation for COVID-19 Vaccination Among Adults, by Recipient COVID-19 Vaccination Status and Attitudes - United States, April-September 2021.
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Nguyen KH, Yankey D, Lu PJ, Kriss JL, Brewer NT, Razzaghi H, Meghani M, Manns BJ, Lee JT, and Singleton JA
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- Adolescent, Adult, Aged, COVID-19 epidemiology, COVID-19 prevention & control, Female, Health, Humans, Male, Middle Aged, United States epidemiology, Young Adult, COVID-19 Vaccines administration & dosage, Health Knowledge, Attitudes, Practice, Health Personnel psychology, Physician-Patient Relations, Vaccination statistics & numerical data
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Vaccination is critical to controlling the COVID-19 pandemic, and health care providers play an important role in achieving high vaccination coverage (1). To examine the prevalence of report of a provider recommendation for COVID-19 vaccination and its association with COVID-19 vaccination coverage and attitudes, CDC analyzed data among adults aged ≥18 years from the National Immunization Survey-Adult COVID Module (NIS-ACM), a nationally representative cellular telephone survey. Prevalence of report of a provider recommendation for COVID-19 vaccination among adults increased from 34.6%, during April 22-May 29, to 40.5%, during August 29-September 25, 2021. Adults who reported a provider recommendation for COVID-19 vaccination were more likely to have received ≥1 dose of a COVID-19 vaccine (77.6%) than were those who did not receive a recommendation (61.9%) (adjusted prevalence ratio [aPR] = 1.12). Report of a provider recommendation was associated with concern about COVID-19 (aPR = 1.31), belief that COVID-19 vaccines are important to protect oneself (aPR = 1.15), belief that COVID-19 vaccination was very or completely safe (aPR = 1.17), and perception that many or all of their family and friends had received COVID-19 vaccination (aPR = 1.19). Empowering health care providers to recommend vaccination to their patients could help reinforce confidence in, and increase coverage with, COVID-19 vaccines, particularly among groups known to have lower COVID-19 vaccination coverage, including younger adults, racial/ethnic minorities, and rural residents., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Noel T. Brewer reports consulting fees from Merck and Novartis. No other potential conflicts of interest were disclosed.
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- 2021
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26. Disparities in COVID-19 Vaccination Status, Intent, and Perceived Access for Noninstitutionalized Adults, by Disability Status - National Immunization Survey Adult COVID Module, United States, May 30-June 26, 2021.
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Ryerson AB, Rice CE, Hung MC, Patel SA, Weeks JD, Kriss JL, Peacock G, Lu PJ, Asif AF, Jackson HL, and Singleton JA
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- Adolescent, Adult, Aged, COVID-19 epidemiology, COVID-19 prevention & control, Female, Health Care Surveys, Humans, Intention, Male, Middle Aged, United States epidemiology, Young Adult, COVID-19 Vaccines administration & dosage, Disabled Persons statistics & numerical data, Healthcare Disparities statistics & numerical data, Vaccination psychology, Vaccination statistics & numerical data
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Estimates from the 2019 American Community Survey (ACS) indicated that 15.2% of adults aged ≥18 years had at least one reported functional disability (1). Persons with disabilities are more likely than are those without disabilities to have chronic health conditions (2) and also face barriers to accessing health care (3). These and other health and social inequities have placed persons with disabilities at increased risk for COVID-19-related illness and death, yet they face unique barriers to receipt of vaccination (4,5). Although CDC encourages that considerations be made when expanding vaccine access to persons with disabilities,* few public health surveillance systems measure disability status. To describe COVID-19 vaccination status and intent, as well as perceived vaccine access among adults by disability status, data from the National Immunization Survey Adult COVID Module (NIS-ACM) were analyzed. Adults with a disability were less likely than were those without a disability to report having received ≥1 dose of COVID-19 vaccine (age-adjusted prevalence ratio [aPR] = 0.88; 95% confidence interval [CI] = 0.84-0.93) but more likely to report they would definitely get vaccinated (aPR = 1.86; 95% CI = 1.43-2.42). Among unvaccinated adults, those with a disability were more likely to report higher endorsement of vaccine as protection (aPR = 1.29; 95% CI = 1.16-1.44), yet more likely to report it would be or was difficult to get vaccinated than did adults without a disability (aPR = 2.69; 95% CI = 2.16-3.34). Reducing barriers to vaccine scheduling and making vaccination sites more accessible might improve vaccination rates among persons with disabilities., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Catherine E. Rice reports institutional support to Emory University from the Georgia Department of Public Health, the Georgia Department of Behavioral Health and Developmental Disabilities, NEXT for Autism, National Institute of Mental Health, National Institutes of Health (NIH), and National Institute of Environmental Health Sciences, NIH, outside the submitted work; personal fees for professional training workshops on the diagnostic assessment of autism, outside the submitted work; and participation on advisory boards for the Atlanta Autism Consortium, New Jersey State Scientific Advisory Panel for Autism, HANDS in Autism program. No other potential conflicts of interest were disclosed.
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- 2021
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27. COVID-19 Vaccination Coverage Among Adults - United States, December 14, 2020-May 22, 2021.
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Diesel J, Sterrett N, Dasgupta S, Kriss JL, Barry V, Vanden Esschert K, Whiteman A, Cadwell BL, Weller D, Qualters JR, Harris L, Bhatt A, Williams C, Fox LM, Meaney Delman D, Black CL, and Barbour KE
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- Adolescent, Adult, Aged, COVID-19 epidemiology, COVID-19 prevention & control, Female, Humans, Male, Middle Aged, United States epidemiology, Young Adult, COVID-19 Vaccines administration & dosage, Vaccination Coverage statistics & numerical data
- Abstract
The U.S. COVID-19 vaccination program launched on December 14, 2020. The Advisory Committee on Immunization Practices recommended prioritizing COVID-19 vaccination for specific groups of the U.S. population who were at highest risk for COVID-19 hospitalization and death, including adults aged ≥75 years*; implementation varied by state, and eligibility was gradually expanded to persons aged ≥65 years beginning in January 2021. By April 19, 2021, eligibility was expanded to all adults aged ≥18 years nationwide.
† To assess patterns of COVID-19 vaccination coverage among U.S. adults, CDC analyzed data submitted on vaccinations administered during December 14, 2020-May 22, 2021, by age, sex, and community-level characteristics. By May 22, 2021, 57.0% of persons aged ≥18 years had received ≥1 COVID-19 vaccine dose; coverage was highest among persons aged ≥65 years (80.0%) and lowest among persons aged 18-29 years (38.3%). During the week beginning February 7, 2021, vaccination initiation among adults aged ≥65 years peaked at 8.2%, whereas weekly initiation among other age groups peaked later and at lower levels. During April 19-May 22, 2021, the period following expanded eligibility to all adults, weekly initiation remained <4.0% and decreased for all age groups, including persons aged 18-29 years (3.6% to 1.9%) and 30-49 years (3.5% to 1.7%); based on the current rate of weekly initiation (as of May 22), younger persons will not reach the same levels of coverage as older persons by the end of August. Across all age groups, coverage (≥1 dose) was lower among men compared with women, except among adults aged ≥65 years, and lower among persons living in counties that were less urban, had higher social vulnerabilities, or had higher percentages of social determinants of poor health. Continued efforts to improve vaccination confidence and alleviate barriers to vaccination initiation, especially among adults aged 18-49 years, could improve vaccination coverage., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2021
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28. Patterns in COVID-19 Vaccination Coverage, by Social Vulnerability and Urbanicity - United States, December 14, 2020-May 1, 2021.
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Barry V, Dasgupta S, Weller DL, Kriss JL, Cadwell BL, Rose C, Pingali C, Musial T, Sharpe JD, Flores SA, Greenlund KJ, Patel A, Stewart A, Qualters JR, Harris L, Barbour KE, and Black CL
- Subjects
- Adult, COVID-19 epidemiology, COVID-19 prevention & control, Cities epidemiology, Humans, Socioeconomic Factors, United States epidemiology, COVID-19 Vaccines administration & dosage, Healthcare Disparities statistics & numerical data, Urban Population statistics & numerical data, Vaccination Coverage statistics & numerical data, Vulnerable Populations statistics & numerical data
- Abstract
Disparities in vaccination coverage by social vulnerability, defined as social and structural factors associated with adverse health outcomes, were noted during the first 2.5 months of the U.S. COVID-19 vaccination campaign, which began during mid-December 2020 (1). As vaccine eligibility and availability continue to expand, assuring equitable coverage for disproportionately affected communities remains a priority. CDC examined COVID-19 vaccine administration and 2018 CDC social vulnerability index (SVI) data to ascertain whether inequities in COVID-19 vaccination coverage with respect to county-level SVI have persisted, overall and by urbanicity. Vaccination coverage was defined as the number of persons aged ≥18 years (adults) who had received ≥1 dose of any Food and Drug Administration (FDA)-authorized COVID-19 vaccine divided by the total adult population in a specified SVI category.
† SVI was examined overall and by its four themes (socioeconomic status, household composition and disability, racial/ethnic minority status and language, and housing type and transportation). Counties were categorized into SVI quartiles, in which quartile 1 (Q1) represented the lowest level of vulnerability and quartile 4 (Q4), the highest. Trends in vaccination coverage were assessed by SVI quartile and urbanicity, which was categorized as large central metropolitan, large fringe metropolitan (areas surrounding large cities, e.g., suburban), medium and small metropolitan, and nonmetropolitan counties.§ During December 14, 2020-May 1, 2021, disparities in vaccination coverage by SVI increased, especially in large fringe metropolitan (e.g., suburban) and nonmetropolitan counties. By May 1, 2021, vaccination coverage was lower among adults living in counties with the highest overall SVI; differences were most pronounced in large fringe metropolitan (Q4 coverage = 45.0% versus Q1 coverage = 61.7%) and nonmetropolitan (Q4 = 40.6% versus Q1 = 52.9%) counties. Vaccination coverage disparities were largest for two SVI themes: socioeconomic status (Q4 = 44.3% versus Q1 = 61.0%) and household composition and disability (Q4 = 42.0% versus Q1 = 60.1%). Outreach efforts, including expanding public health messaging tailored to local populations and increasing vaccination access, could help increase vaccination coverage in high-SVI counties., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2021
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29. COVID-19 Vaccine Second-Dose Completion and Interval Between First and Second Doses Among Vaccinated Persons - United States, December 14, 2020-February 14, 2021.
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Kriss JL, Reynolds LE, Wang A, Stokley S, Cole MM, Harris LQ, Shaw LK, Black CL, Singleton JA, Fitter DL, Rose DA, Ritchey MD, and Toblin RL
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- Adolescent, Adult, Aged, COVID-19 epidemiology, Female, Health Services Accessibility, Humans, Male, Middle Aged, Time Factors, United States epidemiology, Young Adult, COVID-19 prevention & control, COVID-19 Vaccines administration & dosage, Immunization Schedule, Vaccination Coverage statistics & numerical data
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In December 2020, two COVID-19 vaccines (Pfizer-BioNTech and Moderna) received Emergency Use Authorization from the Food and Drug Administration.*
, † Both vaccines require 2 doses for a completed series. The recommended interval between doses is 21 days for Pfizer-BioNTech and 28 days for Moderna; however, up to 42 days between doses is permissible when a delay is unavoidable.§ Two analyses of COVID-19 vaccine administration data were conducted among persons who initiated the vaccination series during December 14, 2020-February 14, 2021, and whose doses were reported to CDC through February 20, 2021. The first analysis was conducted to determine whether persons who received a first dose and had sufficient time to receive the second dose (i.e., as of February 14, 2021, >25 days from receipt of Pfizer-BioNTech vaccine or >32 days from receipt of Moderna vaccine had elapsed) had received the second dose. A second analysis was conducted among persons who received a second COVID-19 dose by February 14, 2021, to determine whether the dose was received during the recommended dosing interval, which in this study was defined as 17-25 days (Pfizer-BioNTech) and 24-32 days (Moderna) after the first dose. Analyses were stratified by jurisdiction and by demographic characteristics. In the first analysis, among 12,496,258 persons who received the first vaccine dose and for whom sufficient time had elapsed to receive the second dose, 88.0% had completed the series, 8.6% had not received the second dose but remained within the allowable interval (≤42 days since the first dose), and 3.4% had missed the second dose (outside the allowable interval, >42 days since the first dose). The percentage of persons who missed the second dose varied by jurisdiction (range = 0.0%-9.1%) and among demographic groups was highest among non-Hispanic American Indian/Alaska Native (AI/AN) persons (5.1%) and persons aged 16-44 years (4.0%). In the second analysis, among 14,205,768 persons who received a second dose, 95.6% received the dose within the recommended interval, although percentages varied by jurisdiction (range = 79.0%-99.9%). Public health officials should identify and address possible barriers to completing the COVID-19 vaccination series to ensure equitable coverage across communities and maximum health benefits for recipients. Strategies to ensure series completion could include scheduling second-dose appointments at the first-dose administration and sending reminders for second-dose visits., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2021
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30. Vaccination Coverage with Selected Vaccines and Exemption Rates Among Children in Kindergarten - United States, 2019-20 School Year.
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Seither R, McGill MT, Kriss JL, Mellerson JL, Loretan C, Driver K, Knighton CL, and Black CL
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- Child, Child, Preschool, Humans, Immunization Schedule, United States, Vaccination legislation & jurisprudence, Chickenpox Vaccine administration & dosage, Diphtheria-Tetanus-Pertussis Vaccine administration & dosage, Measles-Mumps-Rubella Vaccine administration & dosage, Vaccination Coverage statistics & numerical data
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State and local school vaccination requirements serve to protect students against vaccine-preventable diseases (1). This report summarizes data collected by state and local immunization programs* on vaccination coverage among children in kindergarten (kindergartners) in 48 states, exemptions for kindergartners in 49 states, and provisional enrollment and grace period status for kindergartners in 28 states for the 2019-20 school year, which was more than halfway completed when most schools moved to virtual learning in the spring because of the coronavirus 2019 (COVID-19) pandemic. Nationally, vaccination coverage
† was 94.9% for the state-required number of doses of diphtheria and tetanus toxoids, and acellular pertussis vaccine (DTaP); 95.2% for 2 doses of measles, mumps, and rubella vaccine (MMR); and 94.8% for the state-required number of varicella vaccine doses. Although 2.5% of kindergartners had an exemption from at least one vaccine,§ another 2.3% were not up to date for MMR and did not have a vaccine exemption. Schools and immunization programs can work together to ensure that undervaccinated students are caught up on vaccinations in preparation for returning to in-person learning. This follow-up is especially important in the current school year, in which undervaccination is likely higher because of disruptions in vaccination during the ongoing COVID-19 pandemic (2-4)., Competing Interests: All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2021
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31. Research priorities for accelerating progress toward measles and rubella elimination identified by a cross-sectional web-based survey.
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Kriss JL, Grant GB, Moss WJ, Durrheim DN, Shefer A, Rota PA, Omer SB, Masresha BG, Mulders MN, Hanson M, Linkins RW, and Goodson JL
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- Cross-Sectional Studies, Disease Outbreaks prevention & control, Global Health, Health Surveys, Humans, Immunization Programs, Internet, Measles epidemiology, Measles Vaccine administration & dosage, Population Surveillance, Rubella epidemiology, Rubella Vaccine administration & dosage, Vaccination, Vaccination Coverage, World Health Organization, Disease Eradication, Measles prevention & control, Measles Vaccine immunology, Research, Rubella prevention & control, Rubella Vaccine immunology
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Background: In 2012, the World Health Assembly endorsed the Global Vaccine Action Plan (GVAP) that set a target to eliminate measles and rubella in five of the six World Health Organization (WHO) regions by 2020. Significant progress has been made toward achieving this goal through intensive efforts by countries and Measles & Rubella Initiative (M&RI) partners. Accelerating progress will require evidence-based approaches to improve implementation of the core strategies in the Global Measles and Rubella Strategic Plan. The M&RI Research and Innovation Working Group (R&IWG) conducted a web-based survey as part of a process to identify measles and rubella research priorities. Survey findings were used to inform discussions during a meeting of experts convened by the M&RI at the Pan American Health Organization in November 2016., Methods: The cross-sectional web-based survey of scientific and programmatic experts included questions in four main topic areas: (1) epidemiology and economics (epidemiology); (2) new tools for surveillance, vaccine delivery, and laboratory testing (new tools); (3) immunization strategies and outbreak response (strategies); and (4) vaccine demand and communications (demand). Analyses were stratified by the six WHO regions and by global, regional, or national/sub-national level of respondents., Results: The six highest priority research questions selected by survey respondents from the four topic areas were the following: (1) What are the causes of outbreaks in settings with high reported vaccination coverage? (epidemiology); (2) Can affordable diagnostic tests be developed to confirm measles and rubella cases rapidly and accurately at the point of care? (new tools); (3) What are effective strategies for increasing coverage of the routine first dose of measles vaccine administered at 9 or 12 months? (strategies); (4) What are effective strategies for increasing coverage of the second dose given after the first year of life? (strategies); (5) How can communities best be engaged in planning, implementing and monitoring health services including vaccinations? (demand); (6) What capacity building is needed for health workers to be able to identify and work more effectively with community leaders? (demand). Research priorities varied by region and by global/regional/national levels for all topic areas., Conclusions: Research and innovation will be critical to make further progress toward achieving the GVAP measles and rubella elimination goals. The results of this survey can be used to inform decision-making for investments in research activities at the global, regional, and national levels., (Copyright © 2019. Published by Elsevier Ltd.)
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- 2019
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32. Accelerating measles and rubella elimination through research and innovation - Findings from the Measles & Rubella Initiative research prioritization process, 2016.
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Grant GB, Masresha BG, Moss WJ, Mulders MN, Rota PA, Omer SB, Shefer A, Kriss JL, Hanson M, Durrheim DN, Linkins R, and Goodson JL
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- Disease Outbreaks, Economics, Health Services Needs and Demand, Humans, Immunization methods, Measles transmission, Measles virology, Point-of-Care Testing, Public Health Surveillance, Rubella transmission, Rubella virology, Vaccination methods, Disease Eradication, Inventions, Measles epidemiology, Measles prevention & control, Research, Rubella epidemiology, Rubella prevention & control
- Abstract
The Measles & Rubella Initiative (M&RI) identified five key strategies to achieve measles and rubella elimination, including research and innovation to support cost-effective operations and improve vaccination and diagnostic tools. In 2016, the M&RI Research and Innovation Working Group (R&IWG) completed a research prioritization process to identify key research questions and update the global research agenda. The R&IWG reviewed meeting reports and strategic planning documents and solicited programmatic inputs from vaccination experts at the program operational level through a web survey, to identify previous research priorities and new research questions. The R&IWG then convened a meeting of experts to prioritize the identified research questions in four strategic areas: (1) epidemiology and economics, (2) surveillance and laboratory, (3) immunization strategies, and (4) demand creation and communications. The experts identified 19 priority research questions in the four strategic areas to address key areas of work necessary to further progress toward elimination. Future commitments from partners will be needed to develop a platform for improved coordination with adequate and predictable resources for research implementation and innovation to address these identified priorities., (Copyright © 2019. Published by Elsevier Ltd.)
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- 2019
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33. Disparities in Tdap Vaccination and Vaccine Information Needs Among Pregnant Women in the United States.
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Kriss JL, Albert AP, Carter VM, Jiles AJ, Liang JL, Mullen J, Rodriguez L, Howards PP, Orenstein WA, Omer SB, and Fisher A
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- Adolescent, Adult, Cross-Sectional Studies, Diphtheria-Tetanus-acellular Pertussis Vaccines administration & dosage, Female, Humans, Insurance Coverage statistics & numerical data, Middle Aged, Pregnancy, Racial Groups statistics & numerical data, Surveys and Questionnaires, Whooping Cough prevention & control, Diphtheria-Tetanus-acellular Pertussis Vaccines therapeutic use, Healthcare Disparities statistics & numerical data, Information Seeking Behavior, Needs Assessment statistics & numerical data, Pregnant Women, Vaccination methods
- Abstract
Objectives The Advisory Committee on Immunization Practices (ACIP) and the American College of Obstetricians and Gynecologists (ACOG) recommend that pregnant women receive the Tdap vaccine during every pregnancy. The objectives of this paper are to evaluate disparities in Tdap vaccination among pregnant women in the U.S., and to assess whether race/ethnicity and other characteristics are associated with factors that inform pregnant women's decisions about Tdap vaccination. Methods We conducted a nationwide cross-sectional web-based survey of pregnant women in the U.S. during June-July 2014. The primary outcome was self-reported vaccination status with Tdap during pregnancy, categorized as vaccinated, unvaccinated with intent to be vaccinated during the current pregnancy, and unvaccinated with no intent to be vaccinated during the current pregnancy. Secondary outcomes included factors that influenced women's decisions about vaccination and information needs. We used multivariable logistic regression models to estimate odds ratios for associations between race/ethnicity and the outcomes. Results Among pregnant women who completed the survey, 41% (95% CI 36-45%) reported that they had received Tdap during the current pregnancy. Among those women in the third trimester at the time of survey, 52% (95% CI 43-60%) had received Tdap during the current pregnancy. Hispanic women had higher Tdap vaccination than white women and black women (53%, p < 0.05, compared with 38 and 36%, respectively). In logistic regression models adjusting for maternal age, geographic region, education, and income, Hispanic women were more likely to have been vaccinated with Tdap compared with white women (aOR 2.29, 95% CI 1.20-4.37). Higher income and residing in the western U.S. were also independently associated with Tdap vaccination during pregnancy. Twenty-six percent of surveyed women had not been vaccinated with Tdap yet but intended to receive the vaccine during the current pregnancy; this proportion did not differ significantly by race/ethnicity. The most common factor that influenced women to get vaccinated was a health care provider (HCP) recommendation. The most common reason for not getting vaccinated was a concern about safety of the vaccine. Conclusions This study found that some disparities exist in Tdap vaccination among pregnant women in the U.S., and HCPs have an important role in providing information and recommendations about the maternal Tdap recommendation to pregnant women so they can make informed vaccination decisions.
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- 2019
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34. Clinical Characteristics of Hospitalized Infants With Laboratory-Confirmed Pertussis in Guatemala.
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Phadke VK, McCracken JP, Kriss JL, Lopez MR, Lindblade KA, Bryan JP, Garcia ME, Funes CE, and Omer SB
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- Female, Guatemala epidemiology, Humans, Infant, Infant, Newborn, Leukocyte Count, Lymphocyte Count, Male, Polymerase Chain Reaction, Population Surveillance, Whooping Cough complications, Whooping Cough mortality, Critical Care, Hospitalization, Whooping Cough diagnosis, Whooping Cough therapy
- Abstract
Background: Pertussis is an important cause of hospitalization and death in infants too young to be vaccinated (aged <2 months). Limited data on infant pertussis have been reported from Central America. The aim of this study was to characterize acute respiratory illnesses (ARIs) attributable to Bordetella pertussis among infants enrolled in an ongoing surveillance study in Guatemala., Methods: As part of a population-based surveillance study in Guatemala, infants aged <2 months who presented with ARI and required hospitalization were enrolled, and nasopharyngeal and oropharyngeal swab specimens were obtained. For this study, these specimens were tested for B pertussis using real-time polymerase chain reaction (PCR)., Results: Among 301 infants hospitalized with ARI, we found 11 with pertussis confirmed by PCR (pertussis-positive infants). Compared to pertussis-negative infants, pertussis-positive infants had a higher mean admission white blood cell count (20900 vs 12579 cells/μl, respectively; P = .024), absolute lymphocyte count (11517 vs 5591 cells/μl, respectively; P < .001), rate of admission to the intensive care unit (64% vs 35%, respectively; P = .054), and case fatality rate (18% vs 3%, respectively; P = .014). Ten of the 11 pertussis-positive infants had cough at presentation; the majority (80%) of them had a cough duration of <7 days, and only 1 had a cough duration of >14 days. Fever (temperature ≥ 38°C) was documented in nearly half (45%) of the pertussis-positive infants (range, 38.0-38.4°C)., Conclusions: In this study of infants <2 months of age hospitalized with ARI in Guatemala, pertussis-positive infants had a high rate of intensive care unit admission and a higher case fatality rate than pertussis-negative infants.
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- 2018
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35. Vaccination Coverage for Selected Vaccines and Exemption Rates Among Children in Kindergarten - United States, 2017-18 School Year.
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Mellerson JL, Maxwell CB, Knighton CL, Kriss JL, Seither R, and Black CL
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- Child, Preschool, Health Care Surveys, Humans, Immunization Programs, Immunization Schedule, Schools, United States, Chickenpox Vaccine administration & dosage, Diphtheria-Tetanus-Pertussis Vaccine administration & dosage, Measles-Mumps-Rubella Vaccine administration & dosage, Vaccination statistics & numerical data, Vaccination Coverage statistics & numerical data
- Abstract
State and local school vaccination requirements exist to ensure that students are protected from vaccine-preventable diseases (1). This report summarizes vaccination coverage and exemption estimates collected by state and local immunization programs* for children in kindergarten (kindergartners) in 49 states and the District of Columbia (DC) and kindergartners provisionally enrolled (attending school without complete vaccination or exemption while completing a catch-up vaccination schedule) or in a grace period (a set interval during which a student may be enrolled and attend school without proof of complete vaccination or exemption) for 28 states. Median vaccination coverage
† was 95.1% for the state-required number of doses of diphtheria and tetanus toxoids, and acellular pertussis vaccine (DTaP); 94.3% for 2 doses of measles, mumps, and rubella vaccine (MMR); and 93.8% for 2 doses of varicella vaccine. The median percentage of kindergartners with an exemption from at least one vaccine§ was 2.2%, and the median percentage provisionally enrolled or attending school during a grace period was 1.8%. Vaccination coverage among kindergartners remained high; however, schools can improve coverage by following up with students who are provisionally enrolled, in a grace period, or lacking complete documentation of required vaccinations., Competing Interests: All authors have completed and submitted the ICMJE form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.- Published
- 2018
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36. Progress Toward Measles Elimination - Western Pacific Region, 2013-2017.
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Hagan JE, Kriss JL, Takashima Y, Mariano KML, Pastore R, Grabovac V, Dabbagh AJ, and Goodson JL
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- Adolescent, Asia, Southeastern epidemiology, Australia epidemiology, Child, Child, Preschool, Disease Outbreaks prevention & control, Asia, Eastern epidemiology, Genotype, Humans, Immunization Programs, Immunization Schedule, Incidence, Infant, Measles virology, Measles Vaccine administration & dosage, Measles virus genetics, Pacific Islands epidemiology, Vaccination Coverage statistics & numerical data, Disease Eradication, Measles epidemiology, Measles prevention & control, Population Surveillance
- Abstract
In 2005, the Regional Committee for the World Health Organization (WHO) Western Pacific Region (WPR)* established a goal for measles elimination
† by 2012 (1). To achieve this goal, the 37 WPR countries and areas implemented the recommended strategies in the WPR Plan of Action for Measles Elimination (2) and the Field Guidelines for Measles Elimination (3). The strategies include 1) achieving and maintaining ≥95% coverage with 2 doses of measles-containing vaccine (MCV) through routine immunization services and supplementary immunization activities (SIAs), when required; 2) conducting high-quality case-based measles surveillance, including timely and accurate testing of specimens to confirm or discard suspected cases and detect measles virus for genotyping and molecular analysis; and 3) establishing and maintaining measles outbreak preparedness to ensure rapid response and appropriate case management. This report updates the previous report (4) and describes progress toward measles elimination in WPR during 2013-2017. During 2013-2016, estimated regional coverage with the first MCV dose (MCV1) decreased from 97% to 96%, and coverage with the routine second MCV dose (MCV2) increased from 91% to 93%. Eighteen (50%) countries achieved ≥95% MCV1 coverage in 2016. Seven (39%) of 18 nationwide SIAs during 2013-2017 reported achieving ≥95% administrative coverage. After a record low of 5.9 cases per million population in 2012, measles incidence increased during 2013-2016 to a high of 68.9 in 2014, because of outbreaks in the Philippines and Vietnam, as well as increased incidence in China, and then declined to 5.2 in 2017. To achieve measles elimination in WPR, additional measures are needed to strengthen immunization programs to achieve high population immunity, maintain high-quality surveillance for rapid case detection and confirmation, and ensure outbreak preparedness and prompt response to contain outbreaks., Competing Interests: No conflicts of interest were reported.- Published
- 2018
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37. Yogurt consumption during pregnancy and preterm delivery in Mexican women: A prospective analysis of interaction with maternal overweight status.
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Kriss JL, Ramakrishnan U, Beauregard JL, Phadke VK, Stein AD, Rivera JA, and Omer SB
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- Adolescent, Adult, Female, Humans, Mexico epidemiology, Pregnancy, Prospective Studies, Young Adult, Diet methods, Overweight epidemiology, Pregnancy Complications epidemiology, Premature Birth epidemiology, Yogurt statistics & numerical data
- Abstract
Preterm delivery is an important cause of perinatal morbidity and mortality, often precipitated by maternal infection or inflammation. Probiotic-containing foods, such as yogurt, may reduce systemic inflammatory responses. We sought to evaluate whether yogurt consumption during pregnancy is associated with decreased preterm delivery. We studied 965 women enrolled at midpregnancy into a clinical trial of prenatal docosahexaenoic acid supplementation in Mexico. Yogurt consumption during the previous 3 months was categorized as ≥5, 2-4, or <2 cups per week. Preterm delivery was defined as delivery of a live infant before 37 weeks gestation. We used logistic regression to evaluate the association between prenatal yogurt consumption and preterm delivery and examined interaction with maternal overweight status. In this population, 25.4%, 34.2%, and 40.4% of women reported consuming ≥5, 2-4, and <2 cups of yogurt per week, respectively. The prevalence of preterm delivery was 8.9%. Differences in preterm delivery were non-significant across maternal yogurt consumption groups; compared with women reporting <2 cups of yogurt per week, those reporting 2-4 cups of yogurt per week had adjusted odds ratio (aOR) for preterm delivery of 0.81 (95% confidence interval, CI [.46, 1.41]), and those reporting ≥5 cups of yogurt per week had aOR of 0.94 (95% CI [.51, 1.72]). The association between maternal yogurt consumption and preterm delivery differed significantly for nonoverweight women compared with overweight women (p for interaction = .01). Compared with nonoverweight women who consumed <2 cups of yogurt per week, nonoverweight women who consumed ≥5 cups of yogurt per week had aOR for preterm delivery of 0.24 (95% CI [.07, .89]). Among overweight women, there was no significant association. In this population, there was no overall association between prenatal yogurt consumption and preterm delivery. However, there was significant interaction with maternal overweight status; among nonoverweight women, higher prenatal yogurt consumption was associated with reduced preterm delivery., (© 2017 John Wiley & Sons Ltd.)
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- 2018
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38. The World Health Organization Measles Programmatic Risk Assessment Tool-Pilot Testing in India, 2014.
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Goel K, Naithani S, Bhatt D, Khera A, Sharapov UM, Kriss JL, Goodson JL, Laserson KF, Goel P, Kumar RM, and Chauhan LS
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- Centers for Disease Control and Prevention, U.S., Child, Child, Preschool, Disease Eradication, Disease Outbreaks prevention & control, Geography, Humans, Immunization Programs, Incidence, India, Infant, Measles epidemiology, Pilot Projects, Population Surveillance, United States, Vaccination, World Health Organization, Measles prevention & control, Measles Vaccine therapeutic use, Risk Assessment
- Abstract
Measles is a leading cause of child mortality, and reduction of child mortality is a key Millennium Development Goal. In 2014, the World Health Organization and the U.S. Centers for Disease Control and Prevention developed a measles programmatic risk assessment tool to support country measles elimination efforts. The tool was pilot tested in the State of Uttarakhand in August 2014 to assess its utility in India. The tool assessed measles risk for the 13 districts of Uttarakhand as a function of indicator scores in four categories: population immunity, surveillance quality, program delivery performance, and threat. The highest potential overall score was 100. Scores from each category were totaled to assign an overall risk score for each district. From this risk score, districts were categorized as low, medium, high, or very high risk. Of the 13 districts in Uttarakhand in 2014, the tool classified one district (Haridwar) as very high risk and three districts (Almora, Champawat, and Pauri Garhwal) as high risk. The measles risk in these four districts was largely due to low population immunity from high MCV1-MCV2 drop-out rates, low MCV1 and MCV2 coverage, and the lack of a supplementary immunization activity (SIA) within the past three years. This tool can be used to support measles elimination in India by identifying districts that might be at risk for measles outbreaks, and to guide risk mitigation efforts, including strengthening routine immunization services and implementing SIAs., (© 2016 Society for Risk Analysis.)
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- 2017
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39. The World Health Organization Measles Programmatic Risk Assessment Tool-Romania, 2015.
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Kriss JL, Stanescu A, Pistol A, Butu C, and Goodson JL
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- Centers for Disease Control and Prevention, U.S., Disease Eradication, Geography, Global Health, Humans, Incidence, Measles epidemiology, Measles Vaccine, Population Surveillance, Romania epidemiology, Rubella epidemiology, United States, Vaccination, Immunization Programs methods, Measles prevention & control, Risk Assessment methods, World Health Organization
- Abstract
Despite global improvement in annual measles incidence and mortality since 2000, progress toward elimination goals has slowed. The World Health Organization (WHO) European Region (EUR) established a regional goal for measles and rubella elimination by 2015. Romania is one of 13 EUR countries in which measles remains endemic. To identify barriers to meeting programmatic targets and to aid in prioritizing efforts to strengthen measles elimination strategy implementation, the WHO and U.S. Centers for Disease Control and Prevention developed a measles programmatic risk assessment tool that uses routinely collected data to estimate district-level risk scores. The WHO measles programmatic risk assessment tool was used to identify high-risk areas in order to guide measles elimination program activities in Romania. Of the 42 districts in Romania, 27 (64%) were categorized as very high or high risk. Many of the very-high-risk districts were clustered in the western part of the country or were clustered around the capital Bucharest in the southeastern part of the country. The overall risk scores in the very-high-risk districts were driven primarily by poor surveillance quality and suboptimal population immunity. The measles risk assessment conducted in Romania was the first assessment to be completed in a European country. Annual assessments using the programmatic risk tool could provide valuable information for immunization program and surveillance staff at the national level and in each district to guide activities to enhance measles elimination efforts, such as strengthening routine immunization services, improving immunization campaign planning, and intensifying surveillance., (© 2016 Society for Risk Analysis.)
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- 2017
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40. Development of the World Health Organization Measles Programmatic Risk Assessment Tool Using Experience from the 2009 Measles Outbreak in Namibia.
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Kriss JL, De Wee RJ, Lam E, Kaiser R, Shibeshi ME, Ndevaetela EE, Muroua C, Shapumba N, Masresha BG, and Goodson JL
- Subjects
- Centers for Disease Control and Prevention, U.S., Geography, Humans, Incidence, Infant, Measles Vaccine, Namibia epidemiology, Population Surveillance, United States, Vaccination, World Health Organization, Disease Eradication methods, Disease Outbreaks prevention & control, Immunization Programs methods, Measles epidemiology, Measles prevention & control, Risk Assessment methods
- Abstract
In the World Health Organization (WHO) African region, reported measles cases decreased by 80% and measles mortality declined by 88% during 2000-2012. Based on current performance trends, however, focused efforts will be needed to achieve the regional measles elimination goal. To prioritize efforts to strengthen implementation of elimination strategies, the Centers for Disease Control and Prevention and WHO developed a measles programmatic risk assessment tool to identify high-risk districts and guide and strengthen program activities at the subnational level. This article provides a description of pilot testing of the tool in Namibia using comparisons of high-risk districts identified using 2006-2008 data with reported measles cases and incidence during the 2009 outbreak. Of the 34 health districts in Namibia, 11 (32%) were classified as high risk or very high risk, including the district of Engela where the outbreak began in 2009. The district of Windhoek, including the capital city of Windhoek, had the highest overall risk score-driven primarily by poor population immunity and immunization program performance-and one of the highest incidences during the outbreak. Other high-risk districts were either around the capital district or in the northern part of the country near the border with Angola. Districts categorized as high or very high risk based on the 2006-2008 data generally experienced high measles incidence during the large outbreak in 2009, as did several medium- or low-risk districts. The tool can be used to guide measles elimination strategies and to identify programmatic areas that require strengthening., (© 2016 Society for Risk Analysis.)
- Published
- 2017
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41. Progress Toward Measles Elimination - African Region, 2013-2016.
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Masresha BG, Dixon MG, Kriss JL, Katsande R, Shibeshi ME, Luce R, Fall A, Dosseh ARGA, Byabamazima CR, Dabbagh AJ, Goodson JL, and Mihigo R
- Subjects
- Adolescent, Adult, Africa epidemiology, Child, Child, Preschool, Humans, Immunization Programs, Immunization Schedule, Incidence, Infant, Measles Vaccine administration & dosage, Vaccination statistics & numerical data, Young Adult, Disease Eradication, Measles epidemiology, Measles prevention & control, Population Surveillance
- Abstract
In 2011, the 46 World Health Organization (WHO) African Region (AFR) member states established a goal of measles elimination* by 2020, by achieving 1) ≥95% coverage of their target populations with the first dose of measles-containing vaccine (MCV1) at national and district levels; 2) ≥95% coverage with measles-containing vaccine (MCV) per district during supplemental immunization activities (SIAs); and 3) confirmed measles incidence of <1 case per 1 million population in all countries (1). Two key surveillance performance indicator targets include 1) investigating ≥2 cases of nonmeasles febrile rash illness per 100,000 population annually, and 2) obtaining a blood specimen from ≥1 suspected measles case in ≥80% of districts annually (2). This report updates the previous report (3) and describes progress toward measles elimination in AFR during 2013-2016. Estimated regional MCV1 coverage
† increased from 71% in 2013 to 74% in 2015.§ Seven (15%) countries achieved ≥95% MCV1 coverage in 2015.¶ The number of countries providing a routine second MCV dose (MCV2) increased from 11 (24%) in 2013 to 23 (49%) in 2015. Forty-one (79%) of 52 SIAs** during 2013-2016 reported ≥95% coverage. Both surveillance targets were met in 19 (40%) countries in 2016. Confirmed measles incidence in AFR decreased from 76.3 per 1 million population to 27.9 during 2013-2016. To eliminate measles by 2020, AFR countries and partners need to 1) achieve ≥95% 2-dose MCV coverage through improved immunization services, including second dose (MCV2) introduction; 2) improve SIA quality by preparing 12-15 months in advance, and using readiness, intra-SIA, and post-SIA assessment tools; 3) fully implement elimination-standard surveillance†† ; 4) conduct annual district-level risk assessments; and 5) establish national committees and a regional commission for the verification of measles elimination.- Published
- 2017
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42. Evaluation of two vaccine education interventions to improve pertussis vaccination among pregnant African American women: A randomized controlled trial.
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Kriss JL, Frew PM, Cortes M, Malik FA, Chamberlain AT, Seib K, Flowers L, Ault KA, Howards PP, Orenstein WA, and Omer SB
- Subjects
- Adult, Black or African American, Female, Humans, Postpartum Period, Pregnancy, Pregnant Women, Prospective Studies, Young Adult, Behavior Therapy methods, Diphtheria-Tetanus-acellular Pertussis Vaccines administration & dosage, Health Education methods, Vaccination psychology, Vaccination statistics & numerical data, Vaccination Coverage, Whooping Cough prevention & control
- Abstract
Background: Vaccination coverage with tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) vaccine in pregnancy or immediately postpartum has been low. Limited data exist on rigorously evaluated interventions to increase maternal vaccination, including Tdap. Tailored messaging based on the Elaboration Likelihood Model (ELM) framework has been successful in improving uptake of some public health interventions. We evaluated the effect of two ELM-based vaccine educational interventions on Tdap vaccination among pregnant African American women, a group of women who tend to have lower vaccine uptake compared with other groups., Methods: We conducted a prospective randomized controlled trial to pilot test two interventions - an affective messaging video and a cognitive messaging iBook - among pregnant African American women recruited during routine prenatal care visits. We measured Tdap vaccination during the perinatal period (during pregnancy and immediately postpartum), reasons for non-vaccination, and intention to receive Tdap in the next pregnancy., Results: Among the enrolled women (n=106), 90% completed follow-up. Tdap vaccination in the perinatal period was 18% in the control group; 50% in the iBook group (Risk Ratio [vs. control group]: 2.83; 95% CI, 1.26-6.37), and 29% in the video group (RR: 1.65; 95% CI, 0.66-4.09). From baseline to follow-up, women's reported intention to receive Tdap during the next pregnancy improved in all three groups. Among unvaccinated women, the most common reason reported for non-vaccination was lack of a recommendation for Tdap by the woman's physician., Conclusions: Education interventions that provide targeted information for pregnant women in an interactive manner may be useful to improve Tdap vaccination during the perinatal period. However, larger studies including multiple racial and ethnic groups are needed to evaluate robustness of our findings., Trial Registration: clinicaltrials.gov Identifier: NCT01740310., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2017
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43. A randomized trial of maternal influenza immunization decision-making: A test of persuasive messaging models.
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Frew PM, Kriss JL, Chamberlain AT, Malik F, Chung Y, Cortés M, and Omer SB
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- Adolescent, Adult, Black People, Female, Georgia, Health Knowledge, Attitudes, Practice, Humans, Middle Aged, Patient Acceptance of Health Care, Pregnancy, Prospective Studies, Young Adult, Black or African American, Behavior Therapy methods, Decision Making, Health Communication methods, Immunization psychology, Immunization statistics & numerical data, Influenza Vaccines administration & dosage, Influenza, Human prevention & control
- Abstract
Objective: We sought to examine the effectiveness of persuasive communication interventions on influenza vaccination uptake among black/African American pregnant women in Atlanta, Georgia., Methods: We recruited black/African American pregnant women ages 18 to 50 y from Atlanta, GA to participate in a prospective, randomized controlled trial of influenza immunization messaging conducted from January to April 2013. Eligible participants were randomized to 3 study arms. We conducted follow-up questionnaires on influenza immunization at 30-days post-partum with all groups. Chi-square and t tests evaluated group differences, and outcome intention-to-treat assessment utilized log-binomial regression models., Results: Of the 106 enrolled, 95 women completed the study (90% retention), of which 31 were randomly assigned to affective messaging intervention ("Pregnant Pause" video), 30 to cognitive messaging intervention ("Vaccines for a Healthy Pregnancy" video), and 34 to a comparison condition (receipt of the Influenza Vaccine Information Statement). The three groups were balanced on baseline demographic characteristics and reported health behaviors. At baseline, most women (63%, n = 60) reported no receipt of seasonal influenza immunization during the previous 5 y. They expressed a low likelihood (2.1 ± 2.8 on 0-10 scale) of obtaining influenza immunization during their current pregnancy. At 30-days postpartum follow-up, influenza immunization was low among all participants (7-13%) demonstrating no effect after a single exposure to either affective messaging (RR = 1.10; 95% CI: 0.30-4.01) or cognitive messaging interventions (RR = 0.57; 95% CI: 0.11-2.88). Women cited various reasons for not obtaining maternal influenza immunizations. These included concern about vaccine harm (47%, n = 40), low perceived influenza infection risk (31%, n = 26), and a history of immunization nonreceipt (24%, n = 20)., Conclusion: The findings reflect the limitations associated with a single exposure to varying maternal influenza immunization message approaches on vaccine behavior. For this population, repeated influenza immunization exposures may be warranted with alterations in message format, content, and relevance for coverage improvement.
- Published
- 2016
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44. Measles outbreak reveals measles susceptibility among adults in Namibia, 2009 - 2011.
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Ogbuanu IU, Muroua C, Allies M, Chitala K, Gerber S, Shilunga P, Mhata P, Kriss JL, Caparos L, Smit SB, De Wee RJ, and Goodson JL
- Abstract
Background: The World Health Organization, African Region, set the goal of achieving measles elimination by 2020. Namibia was one of seven African countries to implement an accelerated measles control strategy beginning in 1996. Following implementation of this strategy, measles incidence decreased; however, between 2009 and 2011 a major outbreak occurred in Namibia., Methods: Measles vaccination coverage data were analysed and a descriptive epidemiological analysis of the measles outbreak was conducted using measles case-based surveillance and laboratory data., Results: During 1989 - 2008, MCV1 (the first routine dose of measles vaccine) coverage increased from 56% to 73% and five supplementary immunisation activities were implemented. During the outbreak (August 2009 - February 2011), 4 605 suspected measles cases were reported; of these, 3 256 were confirmed by laboratory testing or epidemiological linkage. Opuwo, a largely rural district in north-western Namibia with nomadic populations, had the highest confirmed measles incidence (16 427 cases per million). Infants aged ≤11 months had the highest cumulative age-specific incidence (9 252 cases per million) and comprised 22% of all confirmed cases; however, cases occurred across a wide age range, including adults aged ≥30 years. Among confirmed cases, 85% were unvaccinated or had unknown vaccination history. The predominantly detected measles virus genotype was B3, circulating in concurrent outbreaks in southern Africa, and B2, previously detected in Angola., Conclusion: A large-scale measles outbreak with sustained transmission over 18 months occurred in Namibia, probably caused by importation. The wide age distribution of cases indicated measles-susceptible individuals accumulated over several decades prior to the start of the outbreak.
- Published
- 2016
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45. Vaccine receipt and vaccine card availability among children of the apostolic faith: analysis from the 2010-2011 Zimbabwe demographic and health survey.
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Kriss JL, Goodson J, Machekanyanga Z, Shibeshi ME, Daniel F, Masresha B, and Kaiser R
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- Adolescent, Adult, Female, Health Surveys, Humans, Immunization Programs, Infant, Logistic Models, Male, Middle Aged, Young Adult, Zimbabwe, Religion and Medicine, Treatment Refusal statistics & numerical data, Vaccination statistics & numerical data, Vaccines administration & dosage
- Abstract
Introduction: Vaccine hesitancy and refusal continue to be a global challenge to reaching immunization targets, especially among those in traditional or fundamentalist religions. The apostolic faith in Zimbabwe has been historically associated with objection to most medical interventions, including immunization., Methods: We conducted a descriptive analysis of socio-demographic characteristics and vaccine coverage among apostolic and non-apostolic adults aged 15-49 years and children aged 12-23 months using the Demographic and Health Survey conducted in Zimbabwe during 2010-2011. We used logistic regression models to estimate associations between the apostolic religion and receipt of all four basic childhood vaccinations in the Expanded Program on Immunization, receipt of no vaccinations, and availability of child vaccination card., Results: Among children aged 12-23 months, 64% had received all doses of the four basic vaccinations, and 12% had received none of the recommended vaccines. A vaccination card was available for 68% of children. There was no significant association between Apostolic faith and completion of all basic vaccinations (aOR = 0.90, 95% CI: 0.69-1.17), but apostolic children were almost twice as likely to have received no basic vaccinations (aOR = 1.83, 95% CI: 1.22-2.77) than non-Apostolic children, and they were 32% less likely to have a vaccination card that was available and seen by the interviewer (aOR = 0.68, 95% CI: 0.52-0.89)., Conclusion: Disparities in childhood vaccination coverage and availability of vaccination cards persist for apostolic in Zimbabwe. Continued collaboration with apostolic leaders and additional research to better understand vaccine hesitancy and refine interventions and messaging strategies are needed.
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- 2016
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46. Seeing red: the growing burden of medical bills and debt faced by U.S. families.
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Doty MM, Collins SR, Rustgi SD, and Kriss JL
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- Adult, Aged, Aged, 80 and over, Cost of Illness, Data Collection, Family, Financing, Personal trends, Forecasting, Health Surveys, Humans, Insurance Coverage, Insurance, Health statistics & numerical data, Insurance, Health trends, Middle Aged, Policy Making, Poverty, United States, Financing, Personal statistics & numerical data, Health Care Costs statistics & numerical data, Medically Uninsured statistics & numerical data
- Abstract
Analysis of the 2007 Commonwealth Fund Biennial Health Insurance Survey finds the proportion of working-age Americans who struggled to pay medical bills and accumulated medical debt climbed from 34 percent to 41 percent, or 72 million people,between 2005 and 2007. In addition, 7 million adults age 65 and older had these problems,bringing the total to 79 million adults with medical debt or bill problems. All income groups reported an increase. Families with low or moderate incomes were particularly hard hit, as were adults who had gaps in health coverage or those underinsured. Because of medical bills or accumulated medical debt, an estimated 28 million adults reported they used up all their savings, 21 million incurred large credit card debt, and another 21 million were unable to pay for basic necessities. Sixty-one percent of those with medical debt or bill problems were insured at the time care was provided.
- Published
- 2008
47. Rite of passage? Why young adults become uninsured and how new policies can help, 2008 update.
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Kriss JL, Collins SR, Mahato B, Gould E, and Schoen C
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- Adolescent, Adult, Federal Government, Female, Humans, Insurance Coverage legislation & jurisprudence, Insurance, Health legislation & jurisprudence, Male, Medically Uninsured legislation & jurisprudence, State Government, United States, Health Policy legislation & jurisprudence, Insurance Coverage statistics & numerical data, Insurance, Health statistics & numerical data, Medically Uninsured statistics & numerical data
- Abstract
Young adults, ages 19 to 29, are one of the largest segments of the U.S. population without health insurance: 13.7 million lacked coverage in 2006. They often lose coverage at age 19 or upon high school or college graduation--most two of five (38%) high school graduates who do not enroll in college and one-third of college graduates are uninsured for a time during the first year after graduation. Several states have passed laws to expand coverage of dependents up to age 24 or 25 under parents' insurance policies. This policy change, in addition to two others--extending eligibility for public insurance programs beyond age 18 and ensuring that colleges require and offer coverage to full- and part-time students to have coverage--could help uninsured young adults gain coverage and prevent others from losing it. This issue brief, the sixth in a series, updates an earlier version of Rite of Passage
- Published
- 2008
48. The public's views on health care reform in the 2008 presidential election.
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Collins SR and Kriss JL
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- Adult, Aged, Black People, Data Collection, Female, Health Benefit Plans, Employee, Hispanic or Latino, Humans, Male, Middle Aged, United States, White People, Black or African American, Health Care Reform statistics & numerical data, Politics, Public Opinion
- Abstract
A Commonwealth Fund survey of adults age 19 and older,conducted from June 2007 to October 2007, finds that large majorities of the public, regardless of political affiliation or income level, say that the candidates' views on health care reform will be very important or somewhat important in their voting decision. Moreover, they believe employers--long the cornerstone of the health insurance system--should retain responsibility for providing health insurance, or at least contribute financially to covering the country's working families. A majority of adults would also favor a requirement that everyone have health insurance, with the government helping those who are unable to afford it; support for such a requirement, however, is not strong and varies by political affiliation, geographic region, and income. There is overwhelming agreement that financing for health insurance coverage for all Americans should be a responsibility shared by employers, government, and individuals.
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- 2008
49. Rite of passage? Why young adults become uninsured and how new policies can help.
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Collins SR, Schoen C, Kriss JL, Doty MM, and Mahato B
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- Adult, Eligibility Determination legislation & jurisprudence, Female, Health Benefit Plans, Employee, Health Services Accessibility, Humans, Male, Medical Assistance legislation & jurisprudence, State Government, Students, United States, Universal Health Insurance legislation & jurisprudence, Health Policy, Insurance Coverage statistics & numerical data, Insurance, Health statistics & numerical data, Medically Uninsured statistics & numerical data
- Abstract
Young adults (ages 19 to 29) are one of the largest segments of the U.S.population without health insurance: 13.3 million lacked coverage in 2005. Young adults often lose coverage at age 19 or upon high school or college graduation. Nearly two of five college graduates and one-half of high school graduates who do not enroll in college will be uninsured for a time during the first year after graduation. Several states have passed laws to expand coverage of dependent young adults up to age 24 or 25 under parents' insurance policies. Three policy changes could further help uninsured young adults gain coverage and prevent others from losing it: extending eligibility for public insurance programs beyond age 18; extending dependents' eligibility for their parents' private coverage beyond age 18 or 19; and ensuring that colleges require full- and part-time students to have coverage, and that colleges offer coverage to them.
- Published
- 2007
50. Rite of passage? Why young adults become uninsured and how new policies can help.
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Collins SR, Schoen C, Kriss JL, Doty MM, and Mahato B
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- Adolescent, Adult, Child, Child Health Services, Health Expenditures statistics & numerical data, Health Services Accessibility statistics & numerical data, Humans, Private Sector, Public Sector, United States, Health Policy, Insurance, Health statistics & numerical data, Medically Uninsured statistics & numerical data
- Abstract
Young adults (ages 19 to 29) are one of the largest and fastest-growing segments of the U.S. population without health insurance: more than 13 million lacked coverage in 2003, an increase of 2.2 million since 2000. Young adults often lose coverage under their parents' policies at age 19, or when they graduate from high school or college. Nearly two of five college graduates and one-half of high school graduates who do not go on to college will be uninsured for a period during the first year after graduation. Three policy changes could extend coverage to uninsured young adults and prevent others from losing it: extending eligibility for dependents under private coverage through age 23; extending eligibility for Medicaid and the State Children's Health Insurance Program to age 23; and ensuring that colleges and universities require full-and part-time students to have insurance, and that they offer coverage to both.
- Published
- 2006
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