32 results on '"Michael Iroezindu"'
Search Results
2. High-risk human papillomavirus genotype distribution among women living with and at risk for HIV in Africa
- Author
-
Mkunde Chachage, Ajay P. Parikh, Anifrid Mahenge, Emmanuel Bahemana, Jonathan Mnkai, Wilbert Mbuya, Ruby Mcharo, Lucas Maganga, Jaqueline Mwamwaja, Reginald Gervas, Hannah Kibuuka, Jonah Maswai, Valentine Singoei, Michael Iroezindu, Abiola Fasina, Allahna Esber, Nicole Dear, Michelle Imbach, Trevor A. Crowell, Jaclyn Hern, Xiaofang Song, Michael Hoelscher, Christina S. Polyak, Julie A. Ake, and Christof Geldmacher
- Subjects
Infectious Diseases ,Immunology ,Immunology and Allergy - Published
- 2022
- Full Text
- View/download PDF
3. Coronavirus Antibody Responses before COVID-19 Pandemic, Africa and Thailand
- Author
-
Yifan Li, Mélanie Merbah, Suzanne Wollen-Roberts, Bradley Beckman, Thembi Mdluli, Isabella Swafford, Sandra V. Mayer, Jocelyn King, Courtney Corbitt, Jeffrey R. Currier, Heather Liu, Allahna Esber, Suteeraporn Pinyakorn, Ajay Parikh, Leilani V. Francisco, Nittaya Phanuphak, Jonah Maswai, John Owuoth, Hannah Kibuuka, Michael Iroezindu, Emmanuel Bahemana, Sandhya Vasan, Julie A. Ake, Kayvon Modjarrad, Gregory Gromowski, Dominic Paquin-Proulx, and Morgane Rolland
- Subjects
Microbiology (medical) ,SARS-CoV-2 ,Epidemiology ,Antibodies, Monoclonal ,COVID-19 ,Nigeria ,Nucleocapsid Proteins ,Antibodies, Viral ,Thailand ,Infectious Diseases ,Immunoglobulin G ,Antibody Formation ,Spike Glycoprotein, Coronavirus ,Africa ,Humans ,Pandemics - Abstract
Prior immune responses to coronaviruses might affect human SARS-CoV-2 response. We screened 2,565 serum and plasma samples collected from 2013 through early 2020, before the COVID-19 pandemic began, from 2,250 persons in 4 countries in Africa (Kenya, Nigeria, Tanzania, and Uganda) and in Thailand, including persons living with HIV-1. We detected IgG responses to SARS-CoV-2 spike (S) subunit 2 protein in 1.8% of participants. Profiling against 23 coronavirus antigens revealed that responses to S, subunit 2, or subunit 1 proteins were significantly more frequent than responses to the receptor-binding domain, S-Trimer, or nucleocapsid proteins (p0.0001). We observed similar responses in persons with or without HIV-1. Among all coronavirus antigens tested, SARS-CoV-2, SARS-CoV-1, and Middle East respiratory syndrome coronavirus antibody responses were much higher in participants from Africa than in participants from Thailand (p0.01). We noted less pronounced differences for endemic coronaviruses. Serosurveys could affect vaccine and monoclonal antibody distribution across global populations.
- Published
- 2022
- Full Text
- View/download PDF
4. Perinatal Depressive Symptoms and Viral Non-suppression Among a Prospective Cohort of Pregnant Women Living with HIV in Nigeria, Kenya, Uganda, and Tanzania
- Author
-
Tessa Concepcion, Jennifer Velloza, Christopher G. Kemp, Amritha Bhat, Ian M. Bennett, Deepa Rao, Christina S. Polyak, Julie A. Ake, Allahna Esber, Nicole Dear, Jonah Maswai, John Owuoth, Valentine Sing’oei, Emmanuel Bahemana, Michael Iroezindu, Hannah Kibuuka, and Pamela Y. Collins
- Subjects
Social Work ,Social Psychology ,Nigeria ,HIV Infections ,Reproductive health and childbirth ,Perinatal ,Tanzania ,Viral non-suppression ,Cohort Studies ,Pregnancy ,Clinical Research ,Behavioral and Social Science ,Humans ,Uganda ,Prospective Studies ,Pediatric ,Depression ,Prevention ,Public Health, Environmental and Occupational Health ,HIV ,Kenya ,Brain Disorders ,AIDS ,Mental Health ,Good Health and Well Being ,Infectious Diseases ,Africa ,Public Health and Health Services ,HIV/AIDS ,Female ,Pregnant Women ,Public Health ,Infection - Abstract
Depression is common during pregnancy and is associated with reduced adherence to HIV-related care, though little is known about perinatal trajectories of depression and viral suppression among women living with HIV (WLHV) in sub-Saharan Africa. We sought to assess any association between perinatal depressive symptoms and viral non-suppression among WLWH. Depressive symptomatology and viral load data were collected every 6 months from WLWH enrolled in the African Cohort Study (AFRICOS; January 2013–February 2020). Generalized estimating equations modeled associations between depressive symptoms [Center for Epidemiological Studies Depression (CES-D) ≥ 16] and viral non-suppression. Of 1722 WLWH, 248 (14.4%) had at least one pregnancy (291 total) and for 61 pregnancies (21.0%), women reported depressive symptoms (13.4% pre-conception, 7.6% pregnancy, 5.5% one-year postpartum). Depressive symptomatology was associated with increased odds of viral non-suppression (aOR 2.2; 95% CI 1.2–4.0, p = 0.011). Identification and treatment of depression among women with HIV may improve HIV outcomes for mothers.
- Published
- 2022
- Full Text
- View/download PDF
5. Predictors of All-Cause Mortality Among People With Human Immunodeficiency Virus (HIV) in a Prospective Cohort Study in East Africa and Nigeria
- Author
-
Hannah, Kibuuka, Ezra, Musingye, Betty, Mwesigwa, Michael, Semwogerere, Michael, Iroezindu, Emmanuel, Bahemana, Jonah, Maswai, John, Owuoth, Allahna, Esber, Nicole, Dear, Trevor A, Crowell, Christina S, Polyak, Julie A, Ake, and Willyhelmina, Olomi
- Subjects
Cohort Studies ,Male ,Microbiology (medical) ,Infectious Diseases ,Anti-HIV Agents ,HIV ,Humans ,Nigeria ,Female ,HIV Infections ,Prospective Studies ,Tanzania - Abstract
Background Introduction of antiretroviral therapy (ART) has been associated with a decline in human immunodeficiency virus (HIV)-related mortality, although HIV remains a leading cause of death in sub-Saharan Africa. We describe all-cause mortality and its predictors in people living with HIV (PLWH) in the African Cohort Study (AFRICOS). Methods AFRICOS enrolls participants with or without HIV at 12 sites in Kenya, Uganda, Tanzania, and Nigeria. Evaluations every 6 months include sociobehavioral questionnaires, medical history, physical examination, and laboratory tests. Mortality data are collected from medical records and survivor interviews. Multivariable Cox proportional hazards models were used to calculate adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) for factors associated with mortality. Results From 2013 through 2020, 2724 PLWH completed at least 1 follow-up visit or experienced death. Of these 58.4% were females, 25.8% were aged ≥ 50 years, and 98.3% were ART-experienced. We observed 11.42 deaths per 1000 person-years (95% CI: 9.53–13.68) with causes ascertained in 54% of participants. Deaths were caused by malignancy (28.1%), infections (29.7%), and other non-HIV related conditions. Predictors of mortality included CD4 ≤ 350 cells/µL (aHR 2.01 [95% CI: 1.31–3.08]), a log10copies/mL increase of viral load (aHR 1.36 [95% CI: 1.22–1.51]), recent fever (aHR 1.85[95% CI: 1.22–2.81]), body mass index Conclusions The mortality rate was low in this cohort of mostly virally suppressed PLWH. Patterns of deaths and identified predictors suggest multiple targets for interventions to reduce mortality.
- Published
- 2021
- Full Text
- View/download PDF
6. 1260. Comparing the impact of six-month antiretroviral therapy dispensing to three- to five-month dispensing on viral load suppression in Kenya and Nigeria
- Author
-
Joseph S Cavanaugh, Nicole Dear, Neha Shah, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Jonah Maswaii, Valentine Sing’oei, Jaclyn Hern, Allahna Esber, Trevor A Crowell, Christina Polyak, and Julie A Ake
- Subjects
Infectious Diseases ,Oncology - Abstract
Background Multi-month dispensing (MMD) of antiretroviral therapy (ART) decreases logistical burdens on HIV clinics and patients, which is especially important during the COVID-19 pandemic. HIV programs are scaling-up 6-month dispensing (6MD), but the impact on viral suppression (VS) has not been well-documented in programmatic settings. Methods The African Cohort Study (AFRICOS) is an international observational study of people living with HIV (PLWH) receiving HIV care. In Nigeria and Kenya, this includes 6MD. Participants undergo semiannual viral load quantification and were included in analysis if they had complete data, documentation of MMD (self-reported) and at least two follow-up visits after initiating MMD. In stratified analyses for each country, we used multivariable logistic regression with generalized estimating equations to estimate adjusted odds ratios (aOR) and 95% confidence intervals (95%CI) comparing VS < 50 copies/mL among those who received 6MD to those given 3-5 months dispensing (3-5MD) of ART. Analyses were adjusted for age, education, employment, distance to clinic, duration on ART, ART regimen (TLD vs other) and self-reported ART adherence (≥ 1 missed dose in past 30 days). Results Between January 30, 2020, when MMD data was first collected, and September 1, 2021, 1176 PLWH in Kenya and 272 in Nigeria had at least one visit; 285 participants from Kenya, totaling 442 visits, and 177 participants from Nigeria, totaling 382 visits, met criteria and were included in analysis. At most recent visit, VS < 50 copies/mL was documented in 266 (93.3%) participants from Kenya and 125 (70.6%) participants from Nigeria. Among the 35 participants given 6MD in Kenya, compared to 250 participants given 3-5MD, the aOR for VS was 0.42 (95%CI: 0.13-1.37); among the 91 participants given 6MD in Nigeria, compared to the 86 participants given 3-5MD, the aOR was 3.01 (95%CI: 1.70-5.31). Conclusion The positive association between 6MD and VLS in Nigeria, as compared to 3-5MD, should prompt more aggressive scale-up of 6MD. The lack of an association in Kenya merits further investigation, but likely relates to high overall VS and few participants on 6MD. Updated data from specific geographic and demographic sub-populations is needed to inform programming as 6MD is scaled. Disclosures All Authors: No reported disclosures.
- Published
- 2022
- Full Text
- View/download PDF
7. 2082. HIV Pre-Exposure Prophylaxis Practices and Beliefs in Four African Countries
- Author
-
Neha Shah, Nicole Dear, Joseph S Cavanaugh, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Jonah Maswaii, Valentine Sing'oei, Trevor A Crowell, Ajay Parikh, Allahna Esber, Christina Polyak, and Julie A Ake
- Subjects
Infectious Diseases ,Oncology - Abstract
Background Pre-exposure prophylaxis (PrEP) is an essential component to stopping the HIV epidemic. Recent breakthroughs in PrEP including the vaginal ring and long-acting preparations provide more options for individuals. However, PrEP uptake continues to be a challenge. We evaluated PrEP awareness and barriers to PrEP uptake among individuals in four sub-Saharan African countries. Methods Individuals aged 16 years or older without HIV were referred to the African Cohort Study (AFRICOS) at 12 PEPFAR-supported clinics in Uganda, Kenya, Tanzania and Nigeria through their sexual partners, social media outlets or outreach to communities and schools. Starting in 2020, participants were administered a survey regarding PrEP knowledge, practices, and beliefs every six months. We conducted descriptive analyses from a participant’s first study visit after PrEP-related questions had been introduced. Results From February 2020 to November 2021, the PrEP survey was completed by 372 participants, of whom 204 (55%) were female; their median age was 37.5 (interquartile range (IQR): 26.6-46.5) years old; 228 (61%) were married; 64 (17%) consumed alcohol and 6 (2%) used recreational drugs. Of the 314 (92%) who reported ever having sex, the median age at sexual debut was 18 (IQR: 16-19); 241 (77%) reported 1 regular partner; 295 (94%) had no casual partners in the past six months, 97 (31%) had an HIV+ partner and 26 (10%) had a partner with an unknown HIV status. Results from the PrEP survey are in the Figure. When asked about PrEP, 44 (29%) had discussed PrEP with their provider and 73 (20%) stated they would feel ashamed or embarrassed taking PrEP. Those who had heard of PrEP were more likely to be unmarried (p=0.046) and more likely not to have used a condom during the last sexual encounter with their regular partner (p< 0.05). PrEP knowledge and practices Conclusion In our cohort, few participants had heard of or were taking PrEP. While our cohort may not represent a high-risk population, PrEP awareness was limited among those who were either unaware of their partner’s status or who had a partner infected with HIV. The lack of PrEP awareness highlights the need for increased provider education and outreach especially as new, and potentially less stigmatizing, PrEP options come to market. Disclosures All Authors: No reported disclosures.
- Published
- 2022
- Full Text
- View/download PDF
8. Non‐communicable diseases by age strata in people living with and without HIV in four African countries
- Author
-
David, Chang, Allahna L, Esber, Nicole F, Dear, Michael, Iroezindu, Emmanuel, Bahemana, Hannah, Kibuuka, John, Owuoth, Jonah, Maswai, Trevor A, Crowell, Christina S, Polyak, Joseph S, Cavanaugh, Julie A, Ake, and Catherine, Godfrey
- Subjects
Male ,Public Health, Environmental and Occupational Health ,HIV Infections ,Cohort Studies ,Glucose ,Infectious Diseases ,Hypertension ,Diabetes Mellitus ,Prevalence ,Humans ,Hypoglycemic Agents ,Female ,Uganda ,Obesity ,Renal Insufficiency ,Noncommunicable Diseases - Abstract
Non-communicable diseases (NCDs) are an important driver of morbidity among ageing people living with HIV (PLWH). We examined the composite role of age and HIV status on NCDs in people living with and without HIV.The African Cohort Study (AFRICOS) prospectively enrols participants aged ≥15 years with and without HIV at 12 sites in Kenya, Tanzania, Uganda and Nigeria. From 21 January 2013 to 1 September 2021, we assessed participants for renal insufficiency (estimated glomerular filtration rate60 ml/minute/1.73 mOf 3761 participants with age data, 557 (14.8%) were age ≥50, 2188 (58.2%) were females and 3099 (82.4%) were PLWH. At enrolment, the prevalence of elevated BP, dysglycemia, renal insufficiency and obesity were n = 128 (26.9%), n = 75 (15.8%), n = 8 (1.7%) and n = 40 (8.4%), respectively, for PLWH ≥50. Compared to people without HIV age50, PLWH age ≥50 had increased adjusted odds of having DM (OR: 2.78, 95% CI: 1.49-5.16), dysglycemia (OR: 1.98, 95% CI: 1.51-2.61) and renal insufficiency (OR: 6.20, 95% CI: 2.31-16.66). There were significant differences by study site, specifically, participants from Nigeria had the highest odds of elevated BP, dysglycemia and renal insufficiency as compared to Uganda.There was a high burden of NCDs in this African cohort with differences by geographic region. In order to promote healthy ageing with HIV, screening and treatment for common NCDs should be incorporated into routine HIV care with attention paid to geographic heterogeneity to better allocate resources.
- Published
- 2022
- Full Text
- View/download PDF
9. Transient Reductions in Human Immunodeficiency Virus (HIV) Clinic Attendance and Food Security During the Coronavirus Disease 2019 (COVID-19) Pandemic for People Living With HIV in 4 African Countries
- Author
-
John Owuoth, Jonah Maswai, Ajay Parikh, Nicole Dear, Trevor A Crowell, Emma Duff, Hannah Kibuuka, Allahna Esber, Christina S Polyak, Julie A Ake, Michael Iroezindu, and Emmanuel Bahemana
- Subjects
Microbiology (medical) ,medicine.medical_specialty ,COVID-19 Pandemic ,Activities of daily living ,Coronavirus disease 2019 (COVID-19) ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Environmental health ,West Africa ,Pandemic ,medicine ,Humans ,030212 general & internal medicine ,Viral suppression ,Pandemics ,Food security ,SARS-CoV-2 ,business.industry ,Brief Report ,Public health ,Attendance ,COVID-19 ,HIV ,East Africa ,AcademicSubjects/MED00290 ,Infectious Diseases ,Food Security ,business ,030217 neurology & neurosurgery - Abstract
The coronavirus disease 2019 (COVID-19) pandemic and associated public health responses have disrupted daily living activities with economic and health consequences globally. We observed transient decreases in human immunodeficiency virus (HIV) clinic visit adherence and food security among persons living with HIV early in the pandemic, and an increase in viral suppression later in the pandemic.
- Published
- 2021
- Full Text
- View/download PDF
10. Pretreatment and Acquired Antiretroviral Drug Resistance Among Persons Living With HIV in Four African Countries
- Author
-
Trevor A Crowell, Julie A Ake, Emmanuel Bahemana, John Owuoth, Jennifer A. Malia, Jonah Maswai, Michael Iroezindu, Christina S Polyak, Joanna Freeman, Sheila A. Peel, Ajay Parikh, Peter Coakley, Sodsai Tovanabutra, Alex Kasembeli, Francis Kiweewa, Linda L. Jagodzinski, Leigh Ann Eller, Allahna Esber, Samoel Khamadi, Nicole Dear, and Brook A Danboise
- Subjects
Adult ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,Efavirenz ,Anti-HIV Agents ,HIV Infections ,Drug resistance ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Public health surveillance ,Interquartile range ,Internal medicine ,Drug Resistance, Viral ,medicine ,Humans ,Uganda ,030212 general & internal medicine ,Online Only Articles ,Africa South of the Sahara ,drug resistance ,business.industry ,virus diseases ,Lamivudine ,acquired immunodeficiency syndrome ,Viral Load ,030112 virology ,public health surveillance ,Reverse transcriptase ,HIV/AIDS Collection ,AcademicSubjects/MED00290 ,Infectious Diseases ,chemistry ,Mutation ,HIV-1 ,business ,HIV drug resistance ,Cohort study ,medicine.drug - Abstract
Background Emerging HIV drug resistance (HIVDR) could jeopardize the success of standardized HIV management protocols in resource-limited settings. We characterized HIVDR among antiretroviral therapy (ART)-naive and experienced participants in the African Cohort Study (AFRICOS). Methods From January 2013 to April 2019, adults with HIV-1 RNA >1000 copies/mL underwent ART history review and HIVDR testing upon enrollment at 12 clinics in Uganda, Kenya, Tanzania, and Nigeria. We calculated resistance scores for specific drugs and tallied major mutations to non-nucleoside reverse transcriptase inhibitors (NNRTIs), nucleoside reverse transcriptase inhibitors (NRTIs), and protease inhibitors (PIs) using Stanford HIVDB 8.8 and SmartGene IDNS software. For ART-naive participants, World Health Organization surveillance drug resistance mutations (SDRMs) were noted. Results HIVDR testing was performed on 972 participants with median age 35.7 (interquartile range [IQR] 29.7–42.7) years and median CD4 295 (IQR 148–478) cells/mm3. Among 801 ART-naive participants, the prevalence of SDRMs was 11.0%, NNRTI mutations 8.2%, NRTI mutations 4.7%, and PI mutations 0.4%. Among 171 viremic ART-experienced participants, NNRTI mutation prevalence was 83.6%, NRTI 67.8%, and PI 1.8%. There were 90 ART-experienced participants with resistance to both efavirenz and lamivudine, 33 (36.7%) of whom were still prescribed these drugs. There were 10 with resistance to both tenofovir and lamivudine, 8 (80.0%) of whom were prescribed these drugs. Conclusions Participants on failing ART regimens had a high burden of HIVDR that potentially limited the efficacy of standardized first- and second-line regimens. Management strategies that emphasize adherence counseling while delaying ART switch may promote drug resistance and should be reconsidered., From 2013–2019, pretreatment drug resistance has increased in Uganda, Kenya, Tanzania, and Nigeria. Resistance was observed in most treatment-experienced participants on failing regimens, some of whom had mutations that could compromise standard first- and second-line regimen efficacy.
- Published
- 2020
- Full Text
- View/download PDF
11. Transitioning women to first-line preferred TLD regimen is lagging in Sub-Saharan Africa
- Author
-
Neha Shah, Allahna Esber, J Sean Cavanaugh, Patricia Agaba, Nicole Dear, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Jonah Maswai, Valentine Singoei, Trevor A Crowell, Christina S Polyak, and Julie A Ake
- Subjects
Microbiology (medical) ,Infectious Diseases - Abstract
Introduction In 2019, the World Health Organization (WHO) recommended tenofovir disoproxil fumarate-lamivudine-dolutegravir (TLD) as the preferred first line regimen for adults and adolescents regardless of childbearing status. Nevertheless, final eligibility is determined by local policies which may vary from WHO recommendations. We examined TLD transition by gender across five PEPFAR-supported HIV care programs in sub-Saharan Africa. Methods The African Cohort Study (AFRICOS) enrolls people living with HIV (PLWH) engaged in care in Uganda, Kenya (South Rift Valley and Kisumu West), Tanzania and Nigeria. PLWH with at least one study visit after the country introduced TLD were included. We generated Kaplan-Meier (KM) curves to compare TLD transition by gender from 1) time countries’ introduction of TLD and 2) time of TLD eligibility according to local policies. Results Among 2.476 participants enrolled through September 2021 at 4 sites in sub-Saharan Africa and eligible to transition to TLD, fewer women (68%) compared to men (80%, p Conclusions Despite TLD being the WHO’s preferred regimen since 2019, transition of women to potentially lifesaving TLD has been slower than men at certain clinical sites even after accounting for local eligibility criteria.
- Published
- 2022
12. Weight gain during the dolutegravir transition in the African Cohort Study
- Author
-
Allahna L, Esber, David, Chang, Michael, Iroezindu, Emmanuel, Bahemana, Hannah, Kibuuka, John, Owuoth, Valentine, Singoei, Jonah, Maswai, Nicole F, Dear, Trevor A, Crowell, Christina S, Polyak, and Julie A, Ake
- Subjects
Adult ,Anti-HIV Agents ,Pyridones ,Public Health, Environmental and Occupational Health ,HIV Infections ,Weight Gain ,Kenya ,Piperazines ,Cohort Studies ,Infectious Diseases ,Lamivudine ,Oxazines ,Humans ,Tenofovir ,Heterocyclic Compounds, 3-Ring - Abstract
Dolutegravir (DTG) has become a preferred component of first-line antiretroviral therapy (ART) in many settings but may be associated with excess weight gain. We evaluated changes in weight and body mass index (BMI) after switch to single-tablet tenofovir/lamivudine/dolutegravir (TLD) by people living with HIV (PLWH) in four African countries.The African Cohort Study (AFRICOS) prospectively follows adults with and without HIV in Kenya, Uganda, Tanzania and Nigeria. Demographics, ART regimen, weight, BMI and waist-to-hip ratio were collected every 6 months. Multivariable Cox proportional hazards modelling was used to estimate hazard ratios and 95% confidence intervals (CIs) for factors associated with developing a BMI ≥25 kg/mFrom 23 January 2013 to 1 December 2020, 2950 PLWH were enrolled in AFRICOS and 1474 transitioned to TLD. In adjusted models, PLWH on TLD had 1.77 times the hazard of developing a high BMI (95% CI: 1.22-2.55) compared to PLWH on non-TLD ART. Examining change in weight among all PLWH on ART, participants on TLD gained an average of 0.68 kg (95% CI: 0.32-1.04) more than PLWH on other regimens after adjusting for duration on ART, sex, age, study site and CD4 nadir. Among participants who switched to TLD, the average change in weight prior to TLD switch was 0.35 kg/year (95% CI: 0.25-0.46) and average change in weight was 1.46 kg/year (95% CI: 1.18-1.75) in the year following transition to TLD after adjustment for confounders.Elevated BMI and weight gain among PLWH on TLD are concerning safety signals. Implications for the development of metabolic comorbidities should be monitored, particularly if annual weight gain persists during continued follow-up after transitioning to TLD.
- Published
- 2022
- Full Text
- View/download PDF
13. Non-communicable diseases in older people living with HIV in four African countries: a cohort study
- Author
-
David Chang, Allahna Esber, Nicole Dear, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Jonah Maswai, Trevor Crowell, Christina Polyak, Joseph S Cavanaugh, Julie A Ake, and Catherine Godfrey
- Subjects
Adult ,Male ,Epidemiology ,Immunology ,HIV Infections ,Cohort Studies ,Infectious Diseases ,Glucose ,Risk Factors ,Virology ,Hyperglycemia ,Hypertension ,Diabetes Mellitus ,Prevalence ,Humans ,Female ,Uganda ,Obesity ,Prospective Studies ,Renal Insufficiency ,Noncommunicable Diseases ,Aged - Abstract
The lifespan of people living with HIV is increasing, and non-communicable diseases (NCDs) are becoming an important driver of morbidity in this population. We examined the prevalence of NCDs in older people with HIV and factors associated with development of NCDs.The African Cohort Study is a prospective cohort enrolling adults with and without HIV at 12 sites in Kenya, Tanzania, Uganda, and Nigeria. Using data collected from Jan 21, 2013 to June 30, 2021, we assessed the prevalence and odds of NCDs, including renal insufficiency (estimated glomerular filtration rate [GFR]60 mL/min/1·73 m²), elevated blood pressure (any systolic blood pressure139 mm Hg or diastolic BP89 mm Hg), obesity (body mass index30), diabetes (fasting glucose ≥126 mg/dL or receiving medication for diabetes) or hyperglycaemia (fasting glucose ≥99 mg/dL or non-fasting ≥199 mg/dL). Diabetes and hyperglycaemia were collectively evaluated as dysglycaemia. We used multivariable logistic regression with generalised estimating equations to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for factors associated with NCDs. Diabetes and hyperglycaemia models were adjusted for potential confounders including study site and sex. Renal insufficiency models had similar adjustments with the addition of elevated blood pressure and hyperglycaemia.Of 3434 participants, 2003 (59·3%) were female and 1431 (40·7%) were male, and 2949 (85·9%) were living with HIV. Of people living with HIV, 2188 (74·2%) were younger than 50 years and 761 (25·8%) were aged 50 years or older. Among people living with HIV aged 50 or older, 27·5% (n=209 had elevated blood pressure, 13·4% (102) had dysglycaemia, 4·3% (33) had renal insufficiency, and 11·7% (89) had obesity at last visit. Compared with people without HIV under 50, people living with HIV aged 50 or older had increased adjusted odds of having diabetes (5·29, 95% CI 2·61-10·70), hyperglycaemia (1·86, 1·38-2·50), and renal insufficiency (6·37, 2·38-17·1). We found no differences between individuals aged 50 years or older with and without HIV for diabetes, hyperglycaemia, and renal insufficiency.There was a high burden of NCDs in this cohort. HIV status was not associated with NCD prevalence, although the study was probably underpowered to detect such an association. Screening and treatment for common NCDs, such as raised blood pressure and dysglycaemia, should be considered as part of HIV integrated care. Such an approach might help to prevent other NCDs, such as renal insufficiency, and improve the span of healthy life.PEPFAR via cooperative agreements between HJF and the US Department of Defense.
- Published
- 2022
14. A national survey of hospital readiness during the COVID-19 pandemic in Nigeria
- Author
-
Stella Rotifa, Aliyu Mamman Na’uzo, Zayaid Habib, Adamu M. Adamu, Iraoyah Kelly, Iliyasu Garba, Danny Asogun, Ibrahim Musa Kida, Sylvanus Okogbenin, Yusuf Bara Jibrin, Farouq Muhammad Dayyab, Ogochukwu Chinedum Okoye, Datonye Dennis Alasia, John Oghenevwirhe Ohaju-Obodo, Ayanfe Omololu, Dalhat Mahmood, Vivian Kwaghe, Dimie Ogoina, Michael Iroezindu, Abdulrazaq G. Habib, Bala Waziri, Yahaya Mohammed, Sanusi Mohammed Ibrahim, Ekaete Alice Tobin, Abisoye Oyeyemi, Uche S. Unigwe, Musa A. Garbati, Rabi Usman, Olukemi Adekanmbi, and Sati K Awang
- Subjects
Viral Diseases ,Epidemiology ,Social Sciences ,Geographical Locations ,Medical Conditions ,Sociology ,Surveys and Questionnaires ,Pandemic ,Medicine and Health Sciences ,media_common ,Multidisciplinary ,Schools ,Surge Capacity ,Checklist ,Hospitals ,Laboratory Equipment ,Infectious Diseases ,Preparedness ,Medicine ,Engineering and Technology ,Research Article ,Biotechnology ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,Isolation (health care) ,Universities ,media_common.quotation_subject ,Science ,Ventilators ,Nigeria ,Equipment ,Bioengineering ,Education ,medicine ,Humans ,Pandemics ,business.industry ,Outbreak ,Biology and Life Sciences ,COVID-19 ,Covid 19 ,Health Care ,Health Care Facilities ,Family medicine ,People and Places ,Africa ,Medical Devices and Equipment ,business ,Welfare - Abstract
Introduction The COVID-19 pandemic continues to overwhelm health systems across the globe. We aimed to assess the readiness of hospitals in Nigeria to respond to the COVID-19 outbreak. Method Between April and October 2020, hospital representatives completed a modified World Health Organisation (WHO) COVID-19 hospital readiness checklist consisting of 13 components and 124 indicators. Readiness scores were classified as adequate (score ≥80%), moderate (score 50–79.9%) and not ready (score Results Among 20 (17 tertiary and three secondary) hospitals from all six geopolitical zones of Nigeria, readiness score ranged from 28.2% to 88.7% (median 68.4%), and only three (15%) hospitals had adequate readiness. There was a median of 15 isolation beds, four ICU beds and four ventilators per hospital, but over 45% of hospitals established isolation facilities and procured ventilators after the onset of COVID-19. Of the 13 readiness components, the lowest readiness scores were reported for surge capacity (61.1%), human resources (59.1%), staff welfare (50%) and availability of critical items (47.7%). Conclusion Most hospitals in Nigeria were not adequately prepared to respond to the COVID-19 outbreak. Current efforts to strengthen hospital preparedness should prioritize challenges related to surge capacity, critical care for COVID-19 patients, and staff welfare and protection.
- Published
- 2021
15. Clinical Course and Outcome of Human Monkeypox in Nigeria
- Author
-
Regina E. Oladokun, Hendris Izibewule James, Michael Iroezindu, Liman Muhammed Usman, Chikwe Ihekweazu, Dimie Ogoina, Olusola Aruna, Paul Wakama, Emmanuel Obazee, Adesola Yinka-Ogunleye, and Bolaji Otike-Odibi
- Subjects
Microbiology (medical) ,medicine.medical_specialty ,business.industry ,MEDLINE ,Human immunodeficiency virus (HIV) ,Clinical course ,Nigeria ,Human monkeypox ,Monkeypox ,Exanthema ,Skin infection ,medicine.disease_cause ,medicine.disease ,Hospital records ,Infectious Diseases ,Acquired immunodeficiency syndrome (AIDS) ,Internal medicine ,Humans ,Medicine ,Sex organ ,Monkeypox virus ,business ,Retrospective Studies - Abstract
In a retrospective review of hospital records of 40 human monkeypox cases from Nigeria, the majority developed fever and self-limiting vesiculopustular skin eruptions. Five deaths were reported. Compared to human immunodeficiency virus (HIV)–negative cases, HIV type 1–coinfected cases had more prolonged illness, larger lesions, and higher rates of both secondary bacterial skin infections and genital ulcers.
- Published
- 2020
- Full Text
- View/download PDF
16. Assessing the impact of HIV support groups on antiretroviral therapy adherence and viral suppression in the African cohort study
- Author
-
Julie A Ake, Trevor A Crowell, Yakubu Adamu, Abdulwasiu B. Tiamiyu, Domonique Reed, Hannah Kibuuka, John Owuoth, Jonah Maswai, Michael Iroezindu, Emmanuel Bahemana, Christina S Polyak, Nicole Dear, Prudence Mbah, Allahna Esber, and Samirah Sani Mohammed
- Subjects
Adult ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,ART adherence ,HIV Infections ,Infectious and parasitic diseases ,RC109-216 ,Logistic regression ,Support group ,Medication Adherence ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Antiretroviral Therapy, Highly Active ,Medicine ,Humans ,030212 general & internal medicine ,Generalized estimating equation ,030505 public health ,biology ,business.industry ,Research ,Attendance ,HIV ,Odds ratio ,Africa, Eastern ,Middle Aged ,Viral Load ,biology.organism_classification ,Viral suppression ,Confidence interval ,Self-Help Groups ,Infectious Diseases ,Tanzania ,Logistic Models ,Africa ,Female ,Self Report ,0305 other medical science ,business ,Cohort study - Abstract
Background Support groups for people living with HIV (PLWH) may improve HIV care adherence and outcomes. We assessed the impact of support group attendance on antiretroviral therapy (ART) adherence and viral suppression in four African countries. Methods The ongoing African Cohort Study (AFRICOS) enrolls participants at 12 clinics in Kenya, Uganda, Tanzania, and Nigeria. Self-reported attendance of any support group meetings, self-reported ART adherence, and HIV RNA are assessed every 6 months. Logistic regression models with generalized estimating equations were used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (95% CIs) for support group attendance and other factors potentially associated with ART adherence and viral suppression. Results From January 2013 to December 1, 2019, 1959 ART-experienced PLWH were enrolled and 320 (16.3%) reported any support group attendance prior to enrollment. Complete ART adherence, with no missed doses in the last 30 days, was reported by 87.8% while 92.4% had viral suppression Conclusion Support group attendance was not associated with significantly improved ART adherence or viral suppression, although low support group uptake may have limited our ability to detect a statistically significant impact.
- Published
- 2021
17. Predictors and Barriers to Condom Use in the African Cohort Study
- Author
-
Domonique Reed, Jonah Maswai, Nicole Dear, John Owuoth, Lucas Maganga, Michael Iroezindu, Allahna Esber, Emmanuel Bahemana, Akindiran Akintunde, Tope Analogbei, Trevor A Crowell, Christina S Polyak, Francis Kiweewa, Julie A Ake, and Yakubu Adamu
- Subjects
Sexual partner ,Adult ,Male ,Adolescent ,Sexual Behavior ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,law.invention ,Cohort Studies ,Condoms ,03 medical and health sciences ,symbols.namesake ,Young Adult ,0302 clinical medicine ,Condom ,law ,medicine ,Humans ,030212 general & internal medicine ,Poisson regression ,Prospective Studies ,030505 public health ,biology ,business.industry ,Public Health, Environmental and Occupational Health ,virus diseases ,biology.organism_classification ,Infectious Diseases ,Tanzania ,Sexual Partners ,Africa ,symbols ,Female ,Hiv status ,Consistent condom ,0305 other medical science ,business ,Cohort study ,Demography - Abstract
Consistent condom use is an inexpensive and efficacious HIV prevention strategy. Understanding factors associated with condom use and barriers to use can inform strategies to increase condom uptake. The ongoing African Cohort Study prospectively enrolls adults at 12 clinical sites in Uganda, Kenya, Tanzania, and Nigeria. At enrollment, participants are asked about condom use at last sex with a regular partner. Robust Poisson regression models were used to evaluate predictors of self-reported condom use. Participants who reported not using condoms were asked to provide reasons. From January 2013 to September 2019, 2482 participants reported having at least one regular sexual partner in the preceding 6 months. Of those, 1577 (63.5%) reported using a condom at last sex. Condom use was more common among older participants, males, HIV-infected participants, and those with an HIV-infected partner. Married participants, those with a partner of unknown HIV status, and those reporting alcohol use were less likely to report condom use at last sex. Condom use at last sex also varied significantly by clinical site. Partner disapproval or refusal to use a condom was a consistent driver of disparities in condom use among participants who were HIV infected, female, and aged 18-24 years. Effective HIV prevention programs should integrate condom education with the tools necessary to negotiate condom use with regular partners.
- Published
- 2020
18. 1049. Minimal Transient HIV-1 Viremia Following Vaccination Regimens Containing AD26. ZEBOV and MVA-BN-Filo in ART-Suppressed People Living with HIV
- Author
-
Benjamin L Custer, Betty Mwesigwa, Fredrick Sawe, Janet Oyieko, Nyanda Ntinginya, Ilesh Jani, Michael Iroezindu, Jack Hutter, Linda Jagodzinski, Georgi Shukarev, Leigh Anne Eller, Lucy Ward, Rachel Overman, Janice M Rusnak, Callie Bounds, Christopher Badorrek, Christina Polyak, Allahna L Esber, Amber D Moodley, Chi Tran, Auguste Gaddah, Kerstin Luhn, Macaya Douoguih, Cynthia Robinson, and Julie A Ake
- Subjects
AcademicSubjects/MED00290 ,Infectious Diseases ,Oncology ,Poster Abstracts - Abstract
Background Ebola Virus Disease (EVD) outbreaks primarily occur in the HIV endemic setting of Sub-Saharan Africa. Transient increases in HIV viral load (VL), or blips, have been described following routine vaccinations. We characterized VL blips among PLWH enrolled in a phase 2 trial of a heterologous two-dose EVD vaccine. Methods In EBL2003, adult participants with and without HIV were randomized 1:4 to receive placebo or vaccine. Part A in the US studied MVA-BN-Filo followed by Ad26.ZEBOV 14 days later. Part B in Africa evaluated this MVA/Ad26 regimen and also a schedule of Ad26.ZEBOV followed by MVA-BN-Filo 29 days later. VL was assessed at screening, pre-vaccination, and 21, 42, 180, and 365 days post dose 2. Participants with VL < 20 copies/mL at the first 2 visits who received both doses and had complete VL data through 42 days post dose 2 were evaluated. Blips were defined as a post-injection VL ≥ 20 copies/mL no later than 42 days post dose 2, with subsequent return to VL < 20 copies/mL. Results A total of 277 PLWH on antiretroviral therapy (ART) were assessed; 73.3% (203) had baseline virologic suppression, and 89.2% (181) of those received both doses with complete VL data for inclusion in the analysis. Overall, 19.9% (36) experienced blips: 20.0% (29) of vaccinees vs 19.4% (7) of placebo recipients (p=1.0). All baseline suppressed participants with post-injection viremia subsequently regained suppression. Among vaccinees, the mean blip VL was 192 copies/mL, and the mean blip duration was 56 days, which was not significantly different from placebo. Of all blips, only 2 were > 1,000 copies/mL. Blips occurred in 24.0% (25) of Ad26/MVA recipients, and 9.7% (4) of MVA/Ad26 recipients (p=0.07). A dose of Ad26 was associated with a blip in 6.9% (10) of recipients vs 13.1% (19) for MVA recipients (p=0.12). Regardless of regimen, dose 1 was associated with a blip in 8.3% (12) of vaccinees, compared to 11.7% (17) of vaccinees for dose 2 (p=0.43). Conclusion Among successfully treated PLWH, we observed low magnitude post-dose HIV blips that were not more common in vaccine vs. placebo recipients and did not result in loss of virologic suppression. This data is favorable for the deployment of the EVD vaccines in this trial in areas of high HIV endemicity. Disclosures Benjamin L. Custer, M.D., Alexion Pharmaceuticals (Shareholder)Armata Pharmaceuticals (Shareholder)Biomarin Pharmaceutical (Shareholder)Crispr Therapeutics (Shareholder)CVS Health Corp (Shareholder)Editas Medicine (Shareholder)Gilead (Shareholder)Glaxo Smith Kline (Shareholder)Hologic Inc (Shareholder)Merck (Shareholder)Mesoblast LTD (Shareholder)Pfizer (Shareholder)Sanofi (Shareholder)Unitedhealth Group (Shareholder)Vertex Pharmaceuticals (Shareholder) Georgi Shukarev, MD, Janssen (Employee) Auguste Gaddah, PhD, Janssen Pharmaceutica N.V (Employee) Kerstin Luhn, PhD, Janssen Vaccines and Prevention (Employee, Shareholder) Macaya Douoguih, MD, MPH, Janssen (Employee) Cynthia Robinson, MD, Janssen Vaccines (Employee)
- Published
- 2021
- Full Text
- View/download PDF
19. 1540. Prevalence and Risk Factors associated with HIV and Syphilis Co-infection in the African Cohort Study
- Author
-
Jonah Maswai, Hannah Kibuuka, Allahna Esber, Laura Gilbert, Michael Iroezindu, Trevor A Crowell, Julie A Ake, Nicole Dear, John Owuoth, Christina Polyak, and Emmanuel Bahemana
- Subjects
medicine.medical_specialty ,business.industry ,Human immunodeficiency virus (HIV) ,medicine.disease_cause ,medicine.disease ,AcademicSubjects/MED00290 ,Infectious Diseases ,Oncology ,Internal medicine ,Poster Abstracts ,medicine ,Syphilis ,business ,Cohort study ,Co infection - Abstract
Background Each year, 6 million new syphilis cases are diagnosed globally. Seroprevalence studies in low-income countries (LIC) are limited but is estimated at 3.5-4.6%. Few studies have researched prevalence of sexually transmitted infections (STIs) in people living with human immunodeficiency virus (HIV; PLWH). Current guidelines for PLWH in LIC recommend STI testing for symptomatic persons and those with a new HIV diagnosis, which may lead to high rates of undiagnosed STIs. Here we provide updated STI prevalence rates and risk factors for syphilis co-infection in PLWH in the African Cohort Study (AFRICOS). Methods AFRICOS is an ongoing longitudinal study enrolling PLWH in four African countries where participants undergo routine medical exams, sociobehavioral questionnaires, and laboratory extraction for study purposes every 6 months. Enrollment syphilis data was extracted to determine screen-positive and serologically-confirmed syphilis prevalence rates for this study. Bivariate and multivariate analysis were performed to determine risk factors for HIV and syphilis co-infection and reported as adjusted prevalence ratios (APR) with 95% confidence intervals (CI). Results Between January 2013 and March 1, 2020, 2883 PLWH enrolled. Prevalence of screen-positive and confirmed syphilis was 5.2% and 3%, respectively. Among PLWH with confirmed syphilis, 58.6% were women, mean age was 37.8 years old (IQR 31.658, 45.011, p = 0.068), and genital ulcers were documented in 1.61% participants. In the multivariate model, participants with confirmed syphilis co-infection were more likely to have none or some primary education [2.65 (1.34, 5.230)], demonstrate impaired cognition [2.1 (1.25, 3.590], and consume alcohol [1.88 (1.19, 2.970] compared to those without syphilis. Conclusion In conclusion, our findings suggest that syphilis rates remain elevated at endemic levels in LIC where diagnosis remains challenging. Based on our analysis, current STI guidelines for PLWH in Africa are likely leading to a large proportion of undiagnosed STIs and potentially contributing to community spread. While this study observed that lower education level, alcoholism, and impaired cognition were associated with syphilis co-infection, further studies are needed to investigate these associations. Disclosures All Authors: No reported disclosures
- Published
- 2020
- Full Text
- View/download PDF
20. 113. Advanced HIV Disease Among Adults in the African Cohort Study (AFRICOS)
- Author
-
Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Michael Iroezindu, Ikwo Oboho, Heather N Paulin, Allahna Esber, Jonah Maswai, Christina Polyak, Nicole Dear, Trevor A Crowell, and Julie A Ake
- Subjects
Pediatrics ,medicine.medical_specialty ,AcademicSubjects/MED00290 ,Infectious Diseases ,Oncology ,business.industry ,Poster Abstracts ,medicine ,business ,Cohort study ,Hiv disease - Abstract
Background In the “test and treat” era, early ART may decrease the prevalence of advanced HIV disease (AHD), defined as having a CD4 cell count < 200 cells/µL or World Health Organization (WHO) clinical stage III or IV disease. We assessed trends in AHD and ART coverage and describe factors associated with AHD among adults living with HIV (LWH) across four countries before and during the “test and treat” era. Methods The African Cohort Study (AFRICOS) is a prospective cohort enrolling adults at risk for HIV or LWH from 12 facilities in Uganda, Kenya, Tanzania and Nigeria. Clinical history review and laboratory testing were performed at enrollment and every 6 months. Serum cryptococcal antigen screening (CrAg) was performed in a subset with CD4 < 200 at enrollment. Logistic regression was used to estimate odds ratios for factors associated with CD4 < 200. Results From January 2013–December 2019, 2934 adults LWH were enrolled (median age 38 years [interquartile range, 31–46 years], 41.5% men). Of 2903 with CD4 results at enrollment, 567 (19.5%) had CD4 < 200. Despite consistent increases in ART coverage since 2016, across all countries the prevalence of AHD did not decline below levels observed in 2013 until 2019. The prevalence of CD4 < 200 did not significantly decline from 11.9% (range 9.1–25.0%) in 2013 to 10.3% (range 0–16%) in 2019, p=0.7, while ART coverage increased from 74.7% (range 68.3–93.8%) in 2013 to 97.5% (range 86–100%) in 2019, p= < 0.01 (Figure 1). Factors associated with a higher risk of CD4 < 200 at enrollment were being enrolled in Tanzania, male sex, age >29 years, having a primary or some secondary education or above, and WHO stage II disease or higher. Factors associated with a lower risk of CD4 < 200 were >1 year since HIV diagnosis and being on ART for at least 6 months (Table 1). Among those with CD4 < 200 at enrollment, the most commonly reported comorbidities included HIV wasting syndrome (9.3%) and tuberculosis (TB) (2.3%); 19 (3.4%) of 564 adults screened were CrAg positive. Figure 1: Trends in Percentage of Participants with CD4 Table 1: Factors associated with CD4 Conclusion Despite the scale-up of ART in the era of “test and treat”, AHD prevalence has only recently trended downward. Continued efforts towards early HIV diagnosis and timely ART initiation are needed to reduce the risk for CD4< 200. Strategies to increase TB screening, prophylaxis, and treatment are essential to reduce morbidity. Disclosures All Authors: No reported disclosures
- Published
- 2020
- Full Text
- View/download PDF
21. 976. A Descriptive Retrospective Data Analysis of Maternal Sociodemographic Factors and Access of Healthcare Resources within the African Cohort Study, an Integrated Multicountry Preventative Mother to Child Transmission Program
- Author
-
Jonah Maswai, Anjali Kunz, Michael Iroezindu, Elizabeth Polston, Emmanuel Bahemana, John Owuoth, Nicole Dear, Christina Polyak, Julie A Ake, Allahna Esber, Hannah Kibuuka, Trevor A Crowell, and Jeanette Traver
- Subjects
medicine.medical_specialty ,AcademicSubjects/MED00290 ,Infectious Diseases ,Mother to child transmission ,Oncology ,business.industry ,Family medicine ,Poster Abstracts ,Health care ,Medicine ,business ,Cohort study ,Retrospective data - Abstract
Background Global reduction in new infant HIV infections is largely due to the expansion of prevention of mother-to-child transmission (PMTCT) programs. Identification of gaps in healthcare services is paramount in targeting interventions that identify high-risk populations and healthcare barriers that could lead to increased risk of mother to child transmission (MTCT) of HIV. Methods HIV infected women from 5 regions of Africa enrolled in the African Cohort Study (AFRICOS) were followed prospectively with assessments performed every 6 months. Sociodemographic factors, pregnancy outcomes, and access of PMTCT resources were reviewed for retrospectively reported pregnancies and those followed prospectively from study enrollment. Statistical analysis compared the impact of clinical factors on infant mortality and preterm delivery. Results The study reported 5591 pregnancies from January 2013 to June 2019 of which 5363 were retrospectively reported prior to study enrollment and 228 occurred after enrollment. Pregnancies followed prospectively had higher rates of linkage to PMTCT services prenatally (92.5% vs 6.8%, P< 0.001), intrapartum (64.5% vs 3.5%, P< 0.001), and post-partum (64.5% vs 2.9%, P< 0.001). This group had higher rates of delivery by a skilled birth attendant (93.4% vs 66.7%, P< 0.001) and antiretroviral therapy (ART) prescribed antepartum (96.1% vs 5.5%, P< 0.001) and post-partum (74.6% vs 3.6%, P< 0.001). Both groups had similar rates of prescriptions for intrapartum ART (98.7% vs 97.9%). The majority of women reported ART adherence (96.5%, P< 0.001) which was associated with a decrease in both preterm delivery and infant mortality (adjusted OR 0.24, 95% CI 0.15-0.39). A significant proportion of women followed prospectively reported their infants received ART with good adherence (51.8% vs 0.3% and 93.4% vs 6.3%, respectively P< 0.001). Conclusion Participation in AFRICOS increased linkage to PMTCT programs which resulted in increased likelihood of skilled delivery and appropriate ART use for women and their infants. It highlights that linkage to care continues to be a crucial factor in limiting MTCT of HIV especially in resource-limited settings. Limitations in this study exist due to the low number of prospectively followed pregnancies. Disclosures All Authors: No reported disclosures
- Published
- 2020
- Full Text
- View/download PDF
22. Genetic characterization of Lassa virus strains isolated from 2012 to 2016 in southeastern Nigeria
- Author
-
Jiro Yasuda, Nnenna A. Ajayi, AC Ndu, Nneka M. Chika-Igwenyi, Shota Koyano, Yukiko Miyazaki, Sayaka Okada, Haruka Abe, Yohei Kurosaki, Mayuko Kimura, Damian U. Nwidi, Olamide K. Oloniniyi, Michael Iroezindu, Uche S. Unigwe, Chinedu M. Chukwubike, and Shuzo Urata
- Subjects
0301 basic medicine ,Viral Diseases ,Lineage (evolution) ,RC955-962 ,Artificial Gene Amplification and Extension ,medicine.disease_cause ,Polymerase Chain Reaction ,Geographical Locations ,Database and Informatics Methods ,0302 clinical medicine ,Arctic medicine. Tropical medicine ,Medicine and Health Sciences ,Clade ,Lassa fever ,Phylogeny ,Data Management ,Phylogenetic tree ,Phylogenetic Analysis ,Phylogenetics ,Infectious Diseases ,Public aspects of medicine ,RA1-1270 ,Sequence Analysis ,Research Article ,Neglected Tropical Diseases ,Computer and Information Sciences ,Bioinformatics ,030231 tropical medicine ,Nigeria ,Biology ,Research and Analysis Methods ,Virus ,Viral hemorrhagic fever ,Evolution, Molecular ,Viral Proteins ,03 medical and health sciences ,Lassa Fever ,Amino Acid Sequence Analysis ,medicine ,Humans ,Evolutionary Systematics ,Lassa virus ,Molecular Biology Techniques ,Molecular Biology ,DNA sequence analysis ,Taxonomy ,Evolutionary Biology ,Public Health, Environmental and Occupational Health ,Genetic Variation ,Biology and Life Sciences ,Outbreak ,Reverse Transcriptase-Polymerase Chain Reaction ,Tropical Diseases ,medicine.disease ,Virology ,030104 developmental biology ,People and Places ,Africa ,Sequence Alignment - Abstract
Lassa virus (LASV) is endemic in parts of West Africa where it causes Lassa fever (LF), a viral hemorrhagic fever with frequent fatal outcomes. The diverse LASV strains are grouped into six major lineages based on the geographical location of the isolated strains. In this study, we have focused on the lineage II strains from southern Nigeria. We determined the viral sequences from positive cases of LF reported at tertiary hospitals in Ebonyi and Enugu between 2012 and 2016. Reverse transcription-polymerase chain reaction (RT-PCR) showed that 29 out of 123 suspected cases were positive for the virus among which 11 viral gene sequences were determined. Phylogenetic analysis of the complete coding sequences of the four viral proteins revealed that lineage II strains are broadly divided into two genetic clades that diverged from a common ancestor 195 years ago. One clade, consisting of strains from Ebonyi and Enugu, was more conserved than the other from Irrua, although the four viral proteins were evolving at similar rates in both clades. These results suggested that the viruses of these clades have been distinctively evolving in geographically separate parts of southern Nigeria. Furthermore, the epidemiological data of the 2014 outbreak highlighted the role of human-to-human transmission in this outbreak, which was supported by phylogenetic analysis showing that 13 of the 16 sequences clustered together. These results provide new insights into the evolution of LASV in southern Nigeria and have important implications for vaccine development, diagnostic assay design, and LF outbreak management., Author summary Lassa fever (LF) is a viral hemorrhagic fever caused by Lassa virus (LASV). The different LASV strains are grouped into lineages based on the geographical location of the isolated strains. The aim of our study was to characterize the lineage II strains in southern Nigeria. We sequenced LASV RNA genome from positive cases of LF between 2012 and 2016 which were reported at tertiary hospitals in Ebonyi and Enugu in southeastern Nigeria. Phylogenetic analysis of the viral proteins showed the division of lineage II strains into two genetic clades with one clade being more conserved than the other despite evolving at similar rates. Also, our phylogenetic analysis supported the role of human to human transmission in the 2014 outbreak, in keeping with the epidemiological data. These results provide additional information on the evolution of LASV in southern Nigeria and LF outbreak management.
- Published
- 2018
23. 1258. The Pregnancy Factor: Differences in the Prevalence of Depression Among Pregnant and Nonpregnant Sub-Saharan African Women Living with HIV
- Author
-
Domonique Reed, Francis Kiweewa, Allahna Esber, Julie A Ake, Jonah Maswai, Christina S Polyak, Patrick W. Hickey, Michael Iroezindu, Milissa U Jones, Trevor A Crowell, John Owuoth, and Emmanuel Bahemana
- Subjects
Pregnancy ,Sub saharan ,biology ,business.industry ,Cholesteryl ester storage disease ,Human immunodeficiency virus (HIV) ,medicine.disease ,biology.organism_classification ,medicine.disease_cause ,Abstracts ,Infectious Diseases ,Tanzania ,Oncology ,Poster Abstracts ,Medicine ,Marital status ,HIV and pregnancy ,business ,Depression (differential diagnoses) ,Demography - Abstract
Background In Sub-Saharan African (SSA) women living with HIV, pregnancy creates unique stressors that may induce or exacerbate depression. We described the prevalence of depression during the perinatal period among women living with HIV that became pregnant (P-WLWH) as compared with those that did not (NP-WLWH). Methods We analyzed data from WLWH, age < 45 years, across 11 HIV clinics in Kenya, Nigeria, Uganda, and Tanzania, within the African Cohort Study (AFRICOS). Depression screening was performed via the Center for Epidemiological Studies-Depression (CESD) scale at enrollment and every 6 months in the study. For these analyses, the CESD score was assessed during three periods in time. For P-WLWH, these periods were: (1) enrollment, (2) during pregnancy and (3) the study visit following delivery. For NP-WLWH, three sequential evaluations were analyzed, with visit 1 being enrollment. We compared the prevalence of depression between groups at each period using χ 2 analysis and calculated adjusted odds ratios (OR) using logistic regression for variables associated with positive depression screening (CESD score ≥16). Results There were 764 WLWH selected for analysis, including 164 P-WLWH and 600 NP-WLWH. At enrollment, P-WLWH tended to be younger than NP-WLWH (mean age=30 vs. 34, P < 0.01). Neither group differed significantly with respect to marital status, employment, education, viral load, or duration of HIV. The crude prevalence of depression during periods 1 thru 3 for P-WLWH and NP-WLWH was: 20% (in both groups, P = 0.99), 10% and 13% (P = 0.26), and 4% and 10% (P = 0.01), respectively (figure). P-WLWH had 74% lower odds [OR = 0.26 [0.09–0.75], P = 0.01] of positive depression screening during period 3 than NP-WLWH, when controlling for age, marital status, educational level, viral load, and duration of HIV. Conclusion Surprisingly, our analyses demonstrate P-WLWH were less likely to have positive screening for depression following their pregnancies. These findings may highlight the strength of comprehensive maternal health initiatives in SSA. Additionally, these women will be followed further longitudinally to evaluate patterns of depression in the months following pregnancy. Disclosures All authors: No reported disclosures.
- Published
- 2019
24. Prevalence of hepatitis B e antigen among human immunodeficiency virus and hepatitis B virus co-infected patients in Jos, Nigeria
- Author
-
Comfort A Daniyam, Michael Iroezindu, Oche Agbaji, Edith N. Okeke, Godwin E. Imade, and Ejiji S Isa
- Subjects
Adult ,Male ,Hepatitis B virus ,Adolescent ,Cross-sectional study ,medicine.medical_treatment ,Population ,Nigeria ,Enzyme-Linked Immunosorbent Assay ,HIV Infections ,medicine.disease_cause ,Polymerase Chain Reaction ,Microbiology ,Young Adult ,Seroepidemiologic Studies ,Virology ,medicine ,Humans ,Hepatitis B e Antigens ,education ,Hepatitis ,education.field_of_study ,Hepatitis B Surface Antigens ,business.industry ,Case-control study ,virus diseases ,Immunosuppression ,General Medicine ,Middle Aged ,Viral Load ,Flow Cytometry ,Hepatitis B ,medicine.disease ,digestive system diseases ,CD4 Lymphocyte Count ,Cross-Sectional Studies ,Infectious Diseases ,HBeAg ,Female ,Parasitology ,business ,Viral load - Abstract
Introduction: Human immunodeficiency virus (HIV) negatively impacts the natural history of hepatitis B virus (HBV) infection, including replication. We determined the prevalence of HBeAg in HIV/HBV co-infected patients compared to HBV mono-infected controls and further investigated the relationship between HBeAg seropositivity and the degree of HIV-induced immunosuppression in co-infected patients. Methodology: The study design was cross-sectional. One hundred HBsAg-positive HIV-infected adults and 100 age and sex matched HBsAg-positive HIV negative controls were consecutively recruited between May and November 2010. Relevant demographic and HBV-related information was obtained. HBeAg was assayed by semi-quantitative third generation ELISA. The HIV/HBV co-infected patients also had CD4+ cell and HIV viral load quantification measured using flow cytometry and polymerase chain reaction techniques respectively. Results: In each group, the mean age was 34 ± 8 years and the majority (61%) was female. The prevalence of HBeAg was significantly higher among co-infected patients (n = 28; 28%) than in the controls (n = 15; 15%; p = 0.03). HBeAg seropositivity was independently associated with age < 40 years (AOR = 2.83, 95% = CI 1.29-6.17) and HIV seropositivity (AOR = 2.44, 95% C.I = 1.17-5.07). The prevalence of HBeAg was significantly higher in co-infected patients with CD4 cell count < 200 cell/µL (41.3%) compared to those with 200-499 cell/µL (18.6%) and ≥500 cell/µL (9.1%), p = 0.006. Conclusion: HIV/HBV co-infected patients have a significantly higher prevalence of HBeAg than HBV mono-infected individuals. HBV-infected patients should be routinely assessed for HBeAg, especially if they are co-infected with HIV.
- Published
- 2013
- Full Text
- View/download PDF
25. Predictors of in-hospital mortality and length of stay in community-acquired pneumonia: a 5-year multi-centre case control study of adults in a developing country
- Author
-
Michael Iroezindu, Cajetan C Onyedum, Kenneth I. Onyedibe, Godsent Isiguzo, Ekenechukwu E. Young, Godwin C. Mbata, Obiageli J. John-Maduagwu, Leo E. Okoli, and Emmanuel I. Chima
- Subjects
Adult ,Male ,medicine.medical_specialty ,Pediatrics ,Developing country ,Nigeria ,Comorbidity ,03 medical and health sciences ,0302 clinical medicine ,Community-acquired pneumonia ,Risk Factors ,medicine ,Humans ,030212 general & internal medicine ,Hospital Mortality ,Multi centre ,Intensive care medicine ,Developing Countries ,Aged ,business.industry ,Public Health, Environmental and Occupational Health ,Case-control study ,Anemia ,General Medicine ,Odds ratio ,Pneumonia ,Length of Stay ,Middle Aged ,medicine.disease ,Hospitals ,Anti-Bacterial Agents ,Community-Acquired Infections ,Oxygen ,Infectious Diseases ,Streptococcus pneumoniae ,030228 respiratory system ,Case-Control Studies ,Creatinine ,Hyperglycemia ,Etiology ,Parasitology ,Female ,business ,Delivery of Health Care - Abstract
BACKGROUND We investigated predictors of in-hospital mortality and length of hospital stay among adults with community-acquired pneumonia (CAP) in Nigeria in order to provide recommendations to improve CAP outcomes in developing countries. METHODS This was a multi-centre case control study of patients ≥18 years who were admitted with CAP between 2008 and 2012. Case notes of 100 consecutive patients who died (cases) and random sample of 300 patients discharged (controls) were selected. RESULTS Mean ages were 55.4±19.6 (cases) and 49.3±19.2 (controls). Independent predictors of mortality were CURB-65 score ≥3: adjusted odds ratio (aOR) 24.3, late presentation: aOR 8.6, co-morbidity: aOR 3.9, delayed first dose antibiotics (>4 hours): aOR 3.5, need for supplemental oxygen: aOR 4.9, multilobar pneumonia: aOR 4.0, non-pneumococcal aetiology: aOR 6.5, anaemia: aOR 3.8 and hyperglycemia: aOR 8.6. CURB-65 ≥3 predicted mortality with a high specificity (96.1%) but low sensitivity (75%); positive predictive value of 88.2% and negative predictive value of 90.8%. Care in hospital A and B: aOR 3.3 and 2.2 respectively, male gender aOR 2.1, co-morbidity aOR 3.0, anaemia aOR 2.1 and elevated serum creatinine aOR 6.3 independently predicted length of hospital stay >10 days among survivors. CONCLUSIONS Several modifiable patient-related and process-of-care factors predicted in-hospital mortality, and length of hospital stay among survivors. Our findings should be used to improve CAP outcomes in developing countries.
- Published
- 2016
26. Lessons learnt from the management of a case of Lassa fever and follow-up of nosocomial primary contacts in Nigeria during Ebola virus disease outbreak in West Africa
- Author
-
G. Ozoh, AC Ndu, Ekaete A. Tobin, Uwadiegwu W. Okoroafor, Esinulo Ejimudo, Uche S. Unigwe, Michael Iroezindu, Danny Asogun, Ugochukwu O. Nwoko, Celestine Okwara, and Martin E. Ohanu
- Subjects
Gynecology ,medicine.medical_specialty ,Ebola virus ,business.industry ,Public Health, Environmental and Occupational Health ,Outbreak ,medicine.disease ,medicine.disease_cause ,West africa ,Infectious Diseases ,Medicine ,Parasitology ,business ,Lassa fever - Abstract
Objective To describe our experiences in the management of a case of Lassa fever (LF) and follow-up of nosocomial primary contacts during the 2014 Ebola outbreak in West Africa. Methods Clinical management of the index case and infection control/surveillance activities for primary contacts are described. Laboratory confirmation was by Lassa virus-specific reverse-transcriptase PCR. Results A 28-year-old man with a 10-day history of febrile illness was referred to a major tertiary hospital in south-east Nigeria from a city that previously experienced a LF outbreak and was recently affected by Ebola. On observation of haemorrhagic features, clinicians were at a crossroads. Diagnosis of LF was confirmed at a National Reference Centre. The patient died despite initiation of ribavirin therapy. Response activities identified 121 primary contacts comprising 78 (64.5%) hospital staff/interns, 19 (15.7%) medical students, 18 (14.9%) inpatients and 6 (5.0%) relatives. Their mean age was 32.8 ± 6.6 years, and 65.3% were women. Twenty (16.5%) had high-risk exposure and were offered ribavirin as post-exposure prophylaxis. No secondary case of LF occurred. Fatigue (43.8%) and dizziness (31.3%) were the commonest side effects of ribavirin. Conclusions Response activities contained nosocomial spread of LF, but challenges were experienced including lack of a purpose-built isolation facility, absence of local Lassa virus laboratory capacity, failure to use appropriate protective equipment and stigmatisation of contacts. A key lesson is that the weak health systems of Africa should be comprehensively strengthened; otherwise, we might win the Ebola battle but lose the one against less virulent infections for which effective treatment exists. Objectif Decrire nos experiences dans la prise en charge d'un cas de fievre de Lassa (FL) et le suivi des contacts primaires d'infections nosocomiales lors de l’epidemie d'Ebola en 2014 en Afrique de l'Ouest. Methodes La prise en charge clinique du cas index et les activites de lutte/surveillance de l'infection pour les contacts primaires sont decrites. La confirmation de laboratoire a ete obtenue par la PCR basee sur la transcriptase inverse specifique du virus Lassa. Resultats Un homme de 28 ans avec une histoire de maladie febrile de 10 jours a ete refere dans un hopital tertiaire majeur dans le sud-est du Nigeria, dans une ville qui a precedemment connu une epidemie de FL et avait recemment ete affectee par le virus Ebola. Suivant l'observation des caracteristiques hemorragiques, les cliniciens sont arrives a differentes voies possibles. Le diagnostic de la FL a ete confirme dans un centre national de reference. Le patient est decede malgre l'instauration du traitement au ribavirine. Les activites de reponse ont identifie 121 contacts primaires comprenant 78 (64,5%) membres/stagiaires du personnel de l'hopital, 19 (15,7%) etudiants en medecine, 18 (14,9%) patients hospitalises et 6 (5,0%) parents. Leur âge moyen etait de 32,8 ± 6,6 ans et 65,3% etaient des femmes. Vingt (16,5%) avaient subi une forte exposition au risque et ont recu du ribavirine comme prophylaxie post-exposition. Aucun cas secondaire de FL n'est survenu. La fatigue (43,8%) et des malaises (31,3%) etaient les effets secondaires les plus courants du ribavirine. Conclusions Les activites d'intervention ont contenu la propagation nosocomiale de la FL mais des defis ont ete rencontres notamment l'absence d'un espace d'isolement construit a cet effet, l'absence de capacites locales de laboratoire pour le virus de Lassa, le defaut d'utilisation de l’equipement approprie de protection et la stigmatisation des contacts. Une lecon a retenir est la faiblesse des systemes de sante en Afrique qui devraient etre renforces globalement, sinon nous pourrions gagner la bataille contre Ebola mais perdre celle contre des infections moins virulentes pour lesquelles un traitement efficace existe. Objetivo Describir nuestras experiencias en el manejo de un caso de Fiebre de Lassa (FL) y el seguimiento de los contactos nosocomiales primarios durante el brote del virus de Ebola del 2014 en Africa Occidental. Metodos Se describe el manejo clinico del caso indexado y las actividades de control/vigilancia de la infeccion entre los contactos primarios. La confirmacion en el laboratorio se realizo mediante una PCR transcriptasa inversa especifica para el VL. Resultados Un hombre de 28 anos con una historia de 10 dias de fiebre fue referido a un hospital terciario del sudeste de Nigeria desde una ciudad en la que previamente se habia declarado un brote de FL y que recientemente habia sido afectada por el Ebola. Al observar caracteristicas hemorragicas, los clinicos se encontraron en una encrucijada. El diagnostico de FL se confirmo en el Centro de Referencia Nacional. El paciente murio a pesar de iniciar tratamiento con Ribavirin. Las actividades de respuesta identificaron 121 contactos primarios que incluian 78 (64.5%) sanitarios / internos hospitalarios, 19 (15.7%) estudiantes de medicina, 18 (14.9%) pacientes ingresados y 6 (5.0%) familiares. La edad media era de 32.8 ± 6.6 anos y un 65.3% eran mujeres. Veinte (16.5%) tenian un alto riesgo de exposicion y se les ofrecio una profilaxis post-exposicion con Ribavirin. No hubo un caso secundario de FL. Fatiga (43.8%) y mareos (31.3%) fueron los principales efectos secundarios de Ribavirin. Conclusiones Las actividades de respuesta consiguieron contener la propagacion del VL pero se experimentaron retos incluyendo la falta de una instalacion de aislamiento especificamente disenada y construida, falta de capacidad de laboratorio local para la deteccion del VL, falta de uso de equipos de proteccion apropiados y estigmatizacion de los contactos. Una leccion clave es que los debiles sistemas de salud del Africa deberian fortalecerse de forma integral, o de lo contrario puede que se gane la batalle contra el Ebola pero se pierdan otras contra infecciones menos virulentas para las cuales existen tratamientos efectivos.
- Published
- 2015
27. Sputum bacteriology and antibiotic sensitivity patterns of community-acquired pneumonia in hospitalized adult patients in Nigeria: a 5-year multicentre retrospective study
- Author
-
Kenneth I. Onyedibe, Leo E. Okoli, Godsent Isiguzo, Michael Iroezindu, Emmanuel I. Chima, Godwin C. Mbata, and Cajetan C Onyedum
- Subjects
Microbiology (medical) ,Adult ,Male ,medicine.medical_specialty ,Staphylococcus aureus ,Adolescent ,Antibiotic sensitivity ,Nigeria ,Sputum culture ,Tertiary Care Centers ,Young Adult ,Community-acquired pneumonia ,Internal medicine ,medicine ,Pneumonia, Bacterial ,Humans ,Young adult ,Intensive care medicine ,Aged ,Retrospective Studies ,Aged, 80 and over ,General Immunology and Microbiology ,medicine.diagnostic_test ,business.industry ,Sputum ,Streptococcus ,Retrospective cohort study ,Drug Resistance, Microbial ,General Medicine ,Middle Aged ,medicine.disease ,Anti-Bacterial Agents ,Community-Acquired Infections ,Pneumonia ,Klebsiella pneumoniae ,Infectious Diseases ,Streptococcus pneumoniae ,Etiology ,Female ,medicine.symptom ,business - Abstract
A clear knowledge of the pathogens responsible for community-acquired pneumonia (CAP) in a given region and their antibiotic sensitivity patterns is necessary for optimal treatment. We determined the common bacterial pathogens causing CAP in Nigeria and further reviewed their antibiotic senstivity patterns with a view to providing recommendations to improve antibiotic management of CAP.Case notes of all adult patients who were 18 years or more admitted to four major tertiary hospitals in South East Nigeria with a diagnosis of CAP between 2008 and 2012 were retrospectively studied. To be eligible, patients were required to have sputum culture and sensitivity results available. Socio-demographic, clinical, pre-admission and in-hospital treatment data were also obtained.Of 400 patients with a radiologically confirmed diagnosis of CAP, 232 fulfilled the study criteria; 122 (52.6%) were women and the mean age was 50.6 ± 18.8 years. Aetiological agents were identified from sputum in 189 (81.5%) patients. Streptococcus pneumoniae (n = 90, 47.6%) was the most frequent isolate followed by Klebsiella pneumoniae (n = 62, 32.8%), Staphylococcus aureus (n = 24, 12.7%) and Streptococcus pyogenes (n = 13, 6.9%). The pathogens were most sensitive to levofloxacin (77%), ceftazidime (75.5%) and ofloxacin (55.8%). The susceptibility of the isolates to antibiotics most frequently presecribed for empirical therapy was low (co-amoxiclav, 47.6%; ciprofloxacin, 45.9% and ceftriaxone, 47.6%) and this was associated with higher mortality and/or longer duration of hospital stay in survivors.Strep. pneumoniae and K. pneumoniae were the most common causes of CAP. The pathogens were most sensitive to levofloxacin and ceftazidime. We suggest that these antibiotics should increasingly be considered as superior options for empirical treatment of CAP in Nigeria.
- Published
- 2014
28. Liver function test abnormalities in Nigerian patients with human immunodeficiency virus and hepatitis B virus co-infection
- Author
-
Oche Agbaji, Maxwell O. Akanbi, C Isichei, Michael Iroezindu, Comfort A Daniyam, and Godsent Isiguzo
- Subjects
Adult ,Male ,HBsAg ,Hepatitis B virus ,Nigeria ,Enzyme-Linked Immunosorbent Assay ,HIV Infections ,Dermatology ,medicine.disease_cause ,Liver disease ,Acquired immunodeficiency syndrome (AIDS) ,Liver Function Tests ,HIV Seronegativity ,medicine ,Humans ,Pharmacology (medical) ,Hospitals, Teaching ,Hepatitis B Surface Antigens ,medicine.diagnostic_test ,biology ,business.industry ,Coinfection ,Public Health, Environmental and Occupational Health ,virus diseases ,Middle Aged ,Viral Load ,medicine.disease ,Hepatitis B ,CD4 Lymphocyte Count ,Infectious Diseases ,Cross-Sectional Studies ,HBeAg ,Liver ,Socioeconomic Factors ,Case-Control Studies ,Immunology ,biology.protein ,Female ,Antibody ,Lipid profile ,Liver function tests ,business ,Biomarkers - Abstract
Summary Data on baseline hepatic function of HIV and hepatitis B virus (HBV) co-infected patients are limited in sub-Saharan Africa. We assessed liver function test (LFT) abnormalities in Nigerian patients with HIV/HBV co-infection to highlight the impact of HIV on HBV-related liver disease in sub-Saharan Africa. A cross-sectional study involving 100 HIV/HBV co-infected patients and 100 age- and sex-matched HBV mono-infected controls. Blood testing for HIV antibodies, CD4+ cell count, hepatitis B surface antigen (HBsAg), hepatitis B e antigen (HBeAg), LFTs, platelet count, fasting blood glucose and lipid profile were carried out. Non-invasive hepatic fibrosis scores (aspartate aminotransferase-platelet ratio index [APRI] and FIB-4) were also calculated. Co-infected patients had deranged liver enzymes more than the controls (77% versus 64%, P = 0.04). The predominant patterns of enzyme derangement in co-infected patients were either predominantly ↑ALP (30% versus 4%, P < 0.0001) or mixed (30% versus 15%, P = 0.01) but predominantly ↑AST/ALT in the controls (25% versus 9%, P = 0.003). Co-infected patients had higher fibrosis scores for both APRI ( P = 0.002) and FIB-4 ( P = 0.0001). On further analysis, LFT abnormalities and fibrosis scores were only significantly higher in co-infected patients in the immune clearance and HBeAg-negative chronic hepatitis phases. LFT abnormalities are common in Nigerians with HBV infection and co-infection with HIV negatively impacts on hepatic function.
- Published
- 2013
29. Profile of HIV-infected patients receiving second-line antiretroviral therapy in a resource-limited setting in Nigeria
- Author
-
Frank I. Obi, Michael Iroezindu, Cajetan C Onyedum, Chinwe J Chukwuka, Chukwujekwu E. Anyaene, and Ekenechukwu E. Young
- Subjects
Adult ,Male ,medicine.medical_specialty ,Anti-HIV Agents ,Medically Underserved Area ,Nigeria ,HIV Infections ,Cohort Studies ,Second line ,Internal medicine ,Antiretroviral Therapy, Highly Active ,medicine ,Humans ,Protease inhibitor (pharmacology) ,Developing Countries ,Monitoring, Physiologic ,Retrospective Studies ,Reverse-transcriptase inhibitor ,business.industry ,Public Health, Environmental and Occupational Health ,Proteolytic enzymes ,Retrospective cohort study ,General Medicine ,Middle Aged ,Viral Load ,Antiretroviral therapy ,Surgery ,CD4 Lymphocyte Count ,Regimen ,Infectious Diseases ,Treatment Outcome ,Reverse Transcriptase Inhibitors ,Parasitology ,Female ,business ,Viral load ,medicine.drug - Abstract
BACKGROUND Second-line antiretroviral therapy (ART) accounts for less than 5% of total ART in resource-limited settings. We described the baseline characteristics, reasons for switch and treatment outcomes of Nigerian patients receiving second-line ART. METHODS In this retrospective cohort study we recorded the baseline characteristics of HIV-infected adults whose treatment regimen was switched from a non-nucleoside reverse transcriptase inhibitor, a first-line agent, to a protease inhibitor-based second-line regimen. The duration of follow-up was 12 months. RESULTS Of 4229 patients who started first-line therapy, 186 (4.4%) were switched to second-line therapy after a mean duration of 16.6 ± 7.6 months. Their mean age was 41.8 ± 9.6 years and 59.1% were women. The median (range) viral load and CD4 cell counts at switch were 4.7 (4.1-6.3) log10 copies/ml and 71 (6-610) cells/µl, respectively. The predominant reason for switch was virological failure (79.0%). Only 55.4% and 36.6% of patients had CD4 cell count and viral load at 12 months. About 82%, 79% and 82% of patients with available data achieved virological suppression at 3 months, 6 months and 12 months respectively (p = 0.81). The proportion of patients who achieved ≥50% rise in CD4 cell count increased from 55.8% at 3 months to 78.6% at 12 months (p = 0.0002). CONCLUSION The rate of switch to second-line therapy was low but there were good treatment outcomes among patients with available data. Attrition rate was high. Regular viral load monitoring, improved availability/affordability of second-line regimens and retention in care should become priorities in resource-limited settings.
- Published
- 2013
30. Association of HIV-Induced Immunosuppression and Clinical Malaria in Nigerian Adults
- Author
-
Michael Iroezindu, Godwin E. Imade, Oche Agbaji, Edith N. Okeke, John A Idoko, Comfort A Daniyam, Patricia A. Agaba, and Emmanuel I Agaba
- Subjects
medicine.medical_specialty ,education.field_of_study ,Multivariate analysis ,Cross-sectional study ,business.industry ,Nigerians ,medicine.medical_treatment ,Population ,Human immunodeficiency virus (HIV) ,Immunosuppression ,Articles ,medicine.disease_cause ,medicine.disease ,Infectious Diseases ,Immune system ,Internal medicine ,Immunology ,parasitic diseases ,medicine ,education ,business ,Malaria - Abstract
Despite the growing body of evidence on the interaction between HIV and malaria in sub-Saharan Africa, there is a dearth of data on clinical malaria in HIV-infected patients in Nigeria. We determined the burden of clinical malaria in HIVinfected adult Nigerians and further investigated the association between their immunological status and the rates of clinical malaria. Ninety seven antiretroviral treatment-naïve HIV-infected adults were enrolled in a cross-sectional study from August to December, 2009. The participants had a complete clinical evaluation, thick and thin blood films for malaria parasites and CD4 cell count quantification. Clinical malaria was defined as having fever (temperature ≥ 37.5oC or history of fever within 48 hours) and a malaria parasite density above the median value obtained for subjects with co-existing fever and parasitaemia. Clinical malaria was diagnosed in 10 out of 97 patients (10.3%). Lower CD4 cell counts were associated with increasing rates of clinical malaria which was 0% at CD4 cell count of ≥ 500, 2.6% at 200-499 and 30% at
- Published
- 2013
31. Prevalence and Risk Factors for Opportunistic Infections in HIV Patients Receiving Antiretroviral Therapy in a Resource-Limited Setting in Nigeria
- Author
-
Michael Iroezindu, Brian van Wyk, Eugenia O Ofondu, and Harry Hausler
- Subjects
medicine.medical_specialty ,Tuberculosis ,medicine.diagnostic_test ,business.industry ,Immunology ,Physical examination ,Dermatology ,Odds ratio ,Omics ,medicine.disease ,Antiretroviral therapy ,Sepsis ,Infectious Diseases ,Pharmacotherapy ,Virology ,Internal medicine ,Epidemiology ,Medicine ,business - Abstract
Background: The introduction of Highly Active Antiretroviral Therapy (HAART) has led to decline in HIV-related opportunistic infections in high-income settings. We determined the prevalence and risk factors for opportunistic infections among patients receiving HAART in a resource-limited setting in Nigeria. Methodology: A descriptive and analytical cross-sectional study among adult HIV-infected patients receiving HAART for a median duration of 3 years at the Federal Medical Centre, Owerri, Nigeria was conducted. Data on pre- HAART socio-demographic, clinical and laboratory characteristics were obtained. Post-HAART data were collected through history, physical examination and laboratory investigations. Result: The mean age of the participants was 41.1 ± 10.0 years; and females were in the majority (65.8%). Half (50.4%) belonged to the lower socio-economic class. At baseline (pre-HAART), 72.3% of the participants belonged to World Health Organization (WHO) clinical stage 1 or 2. The median pre-HAART CD4 cell count of the patients was 200 (110-263) cells/μl while the median post-HAART CD4 cell count was 357 (211-496) cells/μl. The majority (77.6%) were adherent on HAART. Out of 339 patients, 76 (22.4%) had opportunistic infections. The leading conditions were candidiasis (8.6%), tuberculosis (7.7%), dermatitis (5.6%), chronic diarrhea (1.5%) and sepsis (1.5%). The independent risk factors for opportunistic infections were household income < 20,000 (Adjusted odds ratio [AOR] = 2.70, 95% CI 1.18-6.18), advanced baseline WHO clinical stage (AOR=9.49, 95% CI 4.20-21.42), baseline hemoglobin
- Published
- 2013
- Full Text
- View/download PDF
32. Impact of human immunodeficiency virus infection on the clinical presentation and outcome of community-acquired pneumonia in hospitalized Nigerian adults: a multicenter case–control study
- Author
-
Emmanuel I. Chima, Godsent Isiguzo, Michael Iroezindu, Cajetan C Onyedum, and Godwin C. Mbata
- Subjects
Microbiology (medical) ,Adult ,Male ,medicine.medical_specialty ,lcsh:QR1-502 ,Human immunodeficiency virus (HIV) ,Nigeria ,medicine.disease_cause ,Outcome (game theory) ,lcsh:Microbiology ,lcsh:Infectious and parasitic diseases ,Community-acquired pneumonia ,medicine ,Pneumonia, Bacterial ,Humans ,lcsh:RC109-216 ,Intensive care medicine ,Aged ,Retrospective Studies ,Medicine(all) ,AIDS-Related Opportunistic Infections ,business.industry ,Case-control study ,Middle Aged ,medicine.disease ,Community-Acquired Infections ,Infectious Diseases ,Case-Control Studies ,Female ,Presentation (obstetrics) ,business - Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.