47 results on '"Zeru T"'
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2. Organizational Culture, Strategic Management, and Good Sports Governance in Selected Ethiopian Olympic Sports Federations: Does Organizational Size Matter?
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Matiwos Jaleta, Zeru Tola, Tesfay Haddera, and Mengistu Garmamo
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ethiopian sports federations ,good governance ,strategic management ,organizational culture ,organizational size ,Sports ,GV557-1198.995 ,Sports medicine ,RC1200-1245 - Abstract
This study intended to examine the moderating effect of organizational size on the influences of organizational culture and strategic management on good sports governance. We used a descriptive cross-sectional survey design to collect data through a structured questionnaire from 265 respondents randomly selected from six Ethiopian Olympic sports federations. We analyzed the data using descriptive and structural equation modeling using SPSS 25.0 and AMOS 23.0. The results, in this regard, indicate that strategic management has a significantly positive direct influence on good sports governance. However, the effect of organizational culture on good sports governance was not observed. Further, organizational size negatively and significantly moderates the relationship between organizational culture and good sports governance. However, the moderation effect of organizational size on the relationship between strategic management and good sports governance was not observed. The principal effect analysis from the moderation effect indicates that organizational size has a significantly positive impact on good sports governance. Hence, this study signifies the need for a fit between size and culture and amplifies the need to engage in strategic management for good sports governance practices in Olympic sports federations.
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- 2024
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3. Unleashing the potential of noncanonical amino acid biosynthesis to create cells with precision tyrosine sulfation
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Yuda Chen, Shikai Jin, Mengxi Zhang, Yu Hu, Kuan-Lin Wu, Anna Chung, Shichao Wang, Zeru Tian, Yixian Wang, Peter G. Wolynes, and Han Xiao
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Science - Abstract
Incorporation of noncanonical amino acids into proteins holds great promise for altering structure and function of these proteins. Here the authors generate metabolically modified prokaryotic and eukaryotic cells that can biosynthesize sTyr and incorporate it into proteins in a site-specific manner.
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- 2022
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4. Applicability and Cost Implication of Labor-Based Methods for Sustainable Road Maintenance (SRM) in Developing Countries
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Berhane Grum, Dejene Tsegaye, Zeru Tariku, Dmtsu Gebremariam, Haftom Gebremicael, Taamrat Kuhilen, Shishay Yemane, Ashenafi Aregawi, and Bizuneh A. Abebe
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Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Regular maintenance keeps roads in a good working condition for users. Road maintenance can be conducted using labor and machine based methods. In this study, applicability and costs of labor-based, namely employment intensive (EI), labor intensive (LI), and labor-based equipment-supported (LBES) road maintenance methods were investigated with a case study in Tigray region, northern Ethiopia. The objectives of this study were therefore to (a) identify road defects and outline the corresponding labor-based maintenance methods, (b) compare relative costs of the three labor-based road maintenance methods, and (c) explore indicators of sustainable road maintenance (SRM) practices for developing countries. The results of this study showed that the labor-based methods are suitable for maintaining a wide range of road defects such as pavement cracks, bleeding, potholes, and rutting. Results of the cost analysis revealed that the LI and EI were 6% and 36% cheaper than the LBES method for repairing shoulder damage in asphalt roads. Roadside bush clearing using LBES resulted in 40% and 147% cost saving compared to EI and LI methods, respectively. Average share of labor cost compared to combined cost of labor and equipment in EI, LI, and LBES was 97%, 79%, and 37%, respectively. Unit rates of maintenance activities for different labor-based methods were also developed for Tigray region. The developed road maintenance unit rates will be useful for estimating cost of labor-based methods in Tigray and other similar regions in Ethiopia. In this study, 45 suitability indicators under 10 categories and three themes (social, economic, and environmental) were developed to improve future road maintenance practices in developing countries. Finally, it is recommended to use SRM practices to increase sustainability of road infrastructure in developing countries.
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- 2023
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5. Causes, Effects, and Mitigation Measures of Time and Cost Overruns in Water Supply Projects: Case of Tigrai Region, Northern Ethiopia
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Lielti Gebreegziabher Berihu, Berhane Grum, Zeru Tariku, and Bizuneh Asfaw Abebe
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Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Project cost overrun and schedule delay are major and widespread problems in the construction industry. In Tigrai, most water supply construction projects are not completed within the predetermined contract time and planned budget. Hence, this research was carried out to investigate the causes and effects of time and cost overrun in water supply projects in Tigrai, northern Ethiopia and further recommend effective mitigation measures. A total of 87 questionnaires were distributed, 50 of them were collected, and desk study of 12 water supply projects were conducted. Data were analyzed using relative importance index and statistical software SPSS version 20. Results showed that the most important causes of time overrun were design errors and changes, lack of consistency between bill of quantities and drawings, and change order. Similarly, the most important causes of cost overrun were design errors and changes, lack of consistency between bill of quantities and drawings, and shortage of construction materials and electromechanical equipment in local market. The most effective mitigation measure of the overruns was complete and proper design. Time and cost overrun of the projects ranged between 0 and 203% and between 0 and 25%, respectively. The regression model showed that time overrun was estimated well (r2 = 0.95) using delays caused by design errors and changes and material import. Similarly, cost overrun was estimated well (r2 = 0.98) using factors that affect cost. Overall, the major cause for the overruns was design problem, hence clients and consultants should give due attention for the design process.
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- 2023
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6. Bone-Specific Enhancement of Antibody Therapy for Breast Cancer Metastasis to Bone
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Zeru Tian, Chenfei Yu, Weijie Zhang, Kuan-Lin Wu, Chenhang Wang, Ruchi Gupta, Zhan Xu, Ling Wu, Yuda Chen, Xiang H.-F. Zhang, and Han Xiao
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Chemistry ,QD1-999 - Published
- 2022
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7. Developing natural products as potential anti-biofilm agents
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Lan Lu, Wei Hu, Zeru Tian, Dandan Yuan, Guojuan Yi, Yangyang Zhou, Qiang Cheng, Jie Zhu, and Mingxing Li
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Anti-biofilm agents ,Natural products ,QS inhibition ,Biofilm-associated infections ,Other systems of medicine ,RZ201-999 - Abstract
Abstract Biofilm is a natural form of bacterial growth ubiquitously in environmental niches. The biofilm formation results in increased resistance to negative environmental influences including resistance to antibiotics and antimicrobial agents. Quorum sensing (QS) is cell-to-cell communication mechanism, which plays an important role in biofilm development and balances the environment when the bacteria density becomes high. Due to the prominent points of biofilms implicated in infectious disease and the spread of multi-drug resistance, it is urgent to discover new antibacterial agents that can regulate biofilm formation and development. Accumulated evidences demonstrated that natural products from plants had antimicrobial and chemo-preventive properties in modulation of biofilm formation in the last two decades. This review will summarize recent studies on the discovery of natural anti-biofilm agents from plants with clear-cut mechanisms or identified molecular addresses, as well as some herbs with unknown mechanisms or unidentified bioactive ingredients. We also focus on the progression of techniques on the extraction and identification of natural anti-biofilm substances. Besides, anti-biofilm therapeutics undergoing clinical trials are discussed. These newly discovered natural anti-biofilm agents are promising candidates which could provide novel strategies for biofilm-associated infections.
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- 2019
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8. Teacher induction in Ethiopia: Structures and practices.
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Zeru, T. Z. and Jita, L. C.
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TEACHER induction ,PROFESSIONAL education ,TEACHER education ,PRIMARY school teachers ,EDUCATIONAL quality - Abstract
Teacher education needs to be viewed as a continuum that begins with pre-service learning, followed by teacher induction, and then the continuing professional development (CPD) of teachers. To date researchers know much less about teacher induction relative to the other two phases of teacher education, in part because of its informal nature in most schools. Ethiopia is an exception and one of the few countries in the world that has recently introduced an institutionalised and formal multi-year induction programme for beginning teachers. This article examines the organisation and practice of teacher induction in Ethiopia by exploring the experiences of three first-year primary school teachers. The findings suggest that while the structure and organisation of the mentoring programme are similar across schools, the professional guidance and assistance that is offered to the first-year teachers varies greatly depending on a number of factors. The article concludes with a discussion of the need to re-examine the conditions of implementing the induction programme. Without proper resources, enough mentors, sufficient time allocated, and regular on-site monitoring, the formal teacher induction programme is unlikely to realise its intended benefits of supporting beginning teachers with adequate subject knowledge and the skills required for quality teaching in the schools. [ABSTRACT FROM AUTHOR]
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- 2014
9. Seroreversion to Chlamydia trachomatis Pgp3 Antigen Among Children in a Hyperendemic Region of Amhara, Ethiopia.
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Tedijanto C, Aragie S, Gwyn S, Wittberg DM, Zeru T, Tadesse Z, Chernet A, Thompson IJB, Nash SD, Lietman TM, Martin DL, Keenan JD, and Arnold BF
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- Humans, Ethiopia epidemiology, Child, Preschool, Female, Male, Infant, Longitudinal Studies, Child, Endemic Diseases, Chlamydia trachomatis immunology, Antigens, Bacterial immunology, Immunoglobulin G blood, Immunoglobulin G immunology, Trachoma epidemiology, Trachoma microbiology, Trachoma immunology, Antibodies, Bacterial blood, Antibodies, Bacterial immunology, Bacterial Proteins immunology
- Abstract
Monitoring trachoma transmission with antibody data requires characterization of decay in IgG to Chlamydia trachomatis antigens. In a 3-year longitudinal cohort in a high-transmission setting, we estimated a median IgG half-life of 3 years and a seroreversion rate of 2.5 per 100 person-years (95% confidence interval, 1.6-3.5). Clinical Trials Registration NCT02754583., Competing Interests: Potential conflicts of interest. All authors: No reported conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2023. 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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- 2024
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10. Compliance with tetracycline eye ointment during annual mass drug administration for trachoma control in the Amhara region, Ethiopia.
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Aragie S, Shiferaw A, Sata E, Hailu D, Dagnew A, Zeru T, Abebe A, Tadesse Z, Wittberg DM, Thompson IJB, Lietman TM, Nash SD, Jensen KA, Callahan EK, and Keenan JD
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Objectives: A 6-week course of tetracycline eye ointment is an alternative to single -dose oral azithromycin in annual mass drug administration for trachoma control. Compliance with the recommended tetracycline eye ointment regimen has not been well characterised when administered as part of a trachoma control program., Methods: A routine mass drug administration for trachoma was carried out in 40 communities in the Amhara region of Ethiopia. Two tubes of tetracycline eye ointment, to be administered twice daily for 6 weeks, was offered to all children under 6 months of age, to pregnant women who declined to take azithromycin, and to all individuals with a macrolide allergy. Seven weeks following the mass drug administration, a treatment compliance survey was performed for all community members documented to have received tetracycline eye ointment during the mass drug administration., Results: Of the 491 individuals documented as having received tetracycline eye ointment from the treatment records, 367 completed the survey, of which 214 recalled being offered tetracycline eye ointment. A total of 105 (49%) respondents reported taking ≥1 daily dose of tetracycline eye ointment on most days of the week for at least the first week. Only 20 (9%) respondents reported taking at least 1 tetracycline eye ointment dose per week for 6 weeks. The most common reasons for low compliance included 'saving it for a future infection' and 'stopped because I (or my child) seemed healthy'. The odds of low compliance were greater for those who reported not having adequate counselling (e.g., odds ratio [OR] 5.3, 95% CI 2.5-28.9 when low compliance was defined as not taking a tetracycline eye ointment dose for most days of at least the first week)., Conclusions: Compliance with tetracycline eye ointment was low when administered by a trachoma program during a routine mass drug administration, especially for those reporting inadequate counselling. Further research with a larger sample size and varied settings is warranted to better understand and improve compliance., (© 2024 The Authors Tropical Medicine & International Health published by John Wiley & Sons Ltd.)
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- 2024
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11. HIV Stigma in Awi Zone, Northwest Ethiopia, and a Unique Community Association as a Potential Partner.
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Yenesew MA, Yismaw G, Nigatu D, Alemu Y, Gasheneit A, Zeru T, Bezabih B, and Abate G
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- Ethiopia, Humans, Male, Female, Adult, Cross-Sectional Studies, Young Adult, Middle Aged, Adolescent, Surveys and Questionnaires, HIV Infections psychology, Social Stigma, Health Knowledge, Attitudes, Practice
- Abstract
Indigenous institutions play a vital role in fighting HIV stigma by leveraging their cultural knowledge, leadership, and community connections. Understanding HIV/AIDS attitudes, information gaps, and stigma among members of indigenous institutions is critical for devising culturally relevant and successful interventions and preventative strategies. This study was conducted with the objective of assessing the levels of knowledge about HIV/AIDS and the various HIV/AIDS discriminatory attitudes and practices among members of the Awi Equestrian Association, an indigenous association in Awi Zone, Northwest Ethiopia, that plays major roles in the social, cultural, political, and economic activities of the community. The study is a cross-sectional study conducted from June through July 2022. Eight hundred and forty-six people in the study area were interviewed using a pilot-tested questionnaire. Multiple linear regression analysis was used to identify factors associated with the score level of HIV-related stigma. Forty-five percent of study participants did not have adequate knowledge of HIV/AIDS, and 67.4% had moderate to high discriminatory attitudes towards people living with HIV. HIV-stigmatizing practices were high, with 36% admitting to speaking badly about people living with HIV and 23% wanting their relative with HIV to seek treatment in another zone. In our study, low level of knowledge about HIV/AIDS ( p < 0.001), older age ( p < 0.05), and male sex ( p < 0.05) were factors associated with higher levels of stigmatizing practices. In conclusion, HIV-related stigma is common in Awi Zone. The Awi Equestrian Association has become a unique potential partner for HIV control in the area in an effort to achieve United Nation AIDS target of 95-95-95.
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- 2024
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12. Species composition, infection rate and feeding preference of Anopheles mosquito species (Diptera: Culicidae) in the west Amhara Region, northwest Ethiopia.
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Yimer M, Worku M, Gebreyesus T, Melese A, Alemu G, Alehegne M, Zeru T, Desta A, Demilie T, Amsalu A, Lankir D, Ayalew S, Estifanos F, Bezabih B, and Tegegne B
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- Animals, Ethiopia epidemiology, Female, Malaria epidemiology, Malaria transmission, Cross-Sectional Studies, Humans, Anopheles physiology, Anopheles parasitology, Mosquito Vectors physiology, Mosquito Vectors parasitology, Feeding Behavior
- Abstract
Background: Reports showed that Amhara Region is accounting for 31% of Ethiopia`s malaria burden. Reports also depicted that despite the existing malaria vector control tools implemented by the regional government, currently there is an increment in malaria prevalence in the region. This might be due to lack of entomological monitoring and comprehensive information on the prevailing species composition, infection rate and feeding presences of An. mosquito species in the study areas. Therefore, this study aimed to address this information., Methods: A community-based cross-sectional study was conducted from 18 February to 30 March 2023 at three districts of the west Amhara Region. For this, six CDC light traps (three indoor and three outdoor) were used to collect adult female An. mosquito species. In this study, 261 An. mosquito species comprising seven species were collected. Their morphological identification and abdominal status determination were carried out using standard morphological identification keys under a dissection microscope. While their infection rates and blood meal sources were determined, using circumsporozoite protein-ELISA and blood meal-ELISA based on the standard protocol. Data were entered to SPSS versions 20 for analysis and p- value < 0.05 was considered as statistically significant., Results: In our study, total of 261 An. mosquito species were identified. An. demeilloni was the most abundant species accounted for 112(42.9%) of all captures. It was also the most predominant species at Ayehu-Guagusa followed by Jabitehnan districts. An. demeilloni and An. cinereus altogether accounting for infection rate of 3(1.1%) for P. vivax parasite. Furthermore, our study showed that more than 50% of An. mosquito species collected fed on cattle blood showing shifting of feeding behaviors., Conclusions: Our study depicted that An. demeilloni and An. cinereus were the most abundant species and infected with P. vivax parasite. Therefore, further comprehensive study should be done in the future., Competing Interests: he authors have declared that no competing interests exist., (Copyright: © 2024 Yimer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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13. Photographic grading to evaluate facial cleanliness and trachoma among children in Amhara region, Ethiopia.
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Caleon RL, Admassu F, Aragie S, Hailu D, Dagnew A, Zeru T, Wittberg DM, Thompson IJB, Abdu S, Beyecha S, Birhanu T, Getachew H, Getnet B, Kabtu E, Shibiru M, Tekew S, Wondimteka B, Lietman TM, Nash SD, Freeman MC, and Keenan JD
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- Child, Child, Preschool, Female, Humans, Infant, Infant, Newborn, Male, Chlamydia trachomatis isolation & purification, Chlamydia trachomatis genetics, Cross-Sectional Studies, Ethiopia epidemiology, Conjunctiva microbiology, Conjunctiva pathology, Face microbiology, Face pathology, Hygiene, Photography, Trachoma epidemiology, Trachoma microbiology
- Abstract
Background: Promotion of facial cleanliness is recommended for the elimination of blinding trachoma, largely because of observational studies that have found an association between various measures of facial uncleanliness and trachoma. However, when a field grader assesses both facial cleanliness and trachoma, associations may be biased. Assessment of photographs of the face and conjunctiva by masked graders may provide a less biased estimate of the relationship between facial cleanliness and trachoma., Methods: Face photographs, conjunctival photographs, and conjunctival swabs were obtained on a random sample of 0-9-year-old children from each of 40 communities in Amhara region, Ethiopia. Face photographs were assessed for the presence of seven measures of an unclean face (i.e., wet nasal discharge, dry nasal discharge, wet ocular discharge, dry ocular discharge, food, dust/dirt, and flies) by three independent masked photo-graders. Conjunctival photographs were similarly graded in a masked fashion for signs of clinically active trachoma. Conjunctival swabs were processed for Chlamydia trachomatis DNA., Results: Of 2073 children with complete data, 808 (39%) had evidence of clinically active trachoma, 150 (7%) had evidence of ocular chlamydia infection, and 2524 (91%) had at least one measure of an unclean face. Dry ocular discharge had the strongest association with clinically active trachoma (age- and sex-adjusted prevalence ratio [PR] 1.4, 95% CI 1.2-1.6) and ocular chlamydia infection (PR 1.9, 95%CI 1.3-2.9), although significant associations were observed between each of the measures of facial uncleanliness and trachoma., Conclusions: Masked assessment of face and conjunctival photographs confirmed prior observational studies that have noted associations between various measures of facial uncleanliness and trachoma. The causal relationship between facial uncleanliness and trachoma is unclear since many features used to measure facial cleanliness (e.g., ocular discharge, nasal discharge, and flies) could be consequences of antecedent ocular chlamydia infection., Trial Registration: NCT02754583, clinicaltrials.gov., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Caleon et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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14. The Epidemiology of Ocular Chlamydia trachomatis Infection within Districts Persistently Endemic for Trachoma in Amhara, Ethiopia.
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Nash SD, Sata E, Chernet A, Gonzalez TA, Nute AW, Ontiveros VC, Gessese D, Zerihun M, Jensen KA, Yismaw G, Zeru T, Melak B, Ayele Z, Mihretu F, Seife F, Tadesse Z, and Callahan EK
- Abstract
Persistent trachoma is a growing concern to trachoma control programs globally and programs serving Ethiopia specifically. Persistent trachoma is defined as a district with two or more trachoma impact surveys (TISs) at which the prevalence of trachomatous inflammation-follicular (TF) among children ages 1-9 years is ≥5%, the elimination threshold. Because the global target for trachoma elimination as a public health problem is 2030, research is needed to better characterize persistent trachoma. This study described the epidemiology of ocular Chlamydia trachomatis infection, the causative bacteria of trachoma, in seven contiguous districts experiencing persistent trachoma. In 2019, multistage cluster random sampling TISs were conducted in the seven districts after 10 years of interventions. All individuals ages ≥1 year were examined for trachoma clinical signs by certified graders, and conjunctival swabs were collected from children ages 1-5 years to test for C. trachomatis infection. The district TF prevalence ranged from 11.8% (95% CI:7.6-16.0%) to 36.1% (95% CI:27.4-44.3%). The range of district-level C. trachomatis infection prevalence was between 2.7% and 34.4%. Statistically significant spatial clustering of high-infection communities was observed in the study districts, and children with infection were more likely than those without to be found in households with clinical signs of trachoma and those without latrines. These seven districts appear to constitute a persistent hotspot in Amhara, where an additional 3-5 years or more of interventions will be required. The global program will need to strengthen and enhance intervention strategies within persistent districts if elimination by 2030 is to be achieved.
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- 2024
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15. Unravelling Chlamydia trachomatis diversity in Amhara, Ethiopia: MLVA-ompA sequencing as a molecular typing tool for trachoma.
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Harte AJ, Ghasemian E, Pickering H, Houghton J, Chernet A, Sata E, Yismaw G, Zeru T, Tadesse Z, Callahan EK, Nash SD, and Holland MJ
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- Humans, Ethiopia epidemiology, Female, Male, Child, Preschool, Molecular Typing methods, Azithromycin therapeutic use, Genetic Variation, Infant, Child, Anti-Bacterial Agents pharmacology, DNA, Bacterial genetics, Chlamydia trachomatis genetics, Chlamydia trachomatis isolation & purification, Chlamydia trachomatis classification, Trachoma epidemiology, Trachoma microbiology, Trachoma drug therapy, Minisatellite Repeats genetics, Bacterial Outer Membrane Proteins genetics, Genotype
- Abstract
Trachoma is the leading infectious cause of blindness worldwide and is now largely confined to around 40 low- and middle-income countries. It is caused by Chlamydia trachomatis (Ct), a contagious intracellular bacterium. The World Health Organization recommends mass drug administration (MDA) with azithromycin for treatment and control of ocular Ct infections, alongside improving facial cleanliness and environmental conditions to reduce transmission. To understand the molecular epidemiology of trachoma, especially in the context of MDA and transmission dynamics, the identification of Ct genotypes could be useful. While many studies have used the Ct major outer membrane protein gene (ompA) for genotyping, it has limitations. Our study applies a typing system novel to trachoma, Multiple Loci Variable Number Tandem Repeat Analysis combined with ompA (MLVA-ompA). Ocular swabs were collected post-MDA from four trachoma-endemic zones in Ethiopia between 2011-2017. DNA from 300 children with high Ct polymerase chain reaction (PCR) loads was typed using MLVA-ompA, utilizing 3 variable number tandem repeat (VNTR) loci within the Ct genome. Results show that MLVA-ompA exhibited high discriminatory power (0.981) surpassing the recommended threshold for epidemiological studies. We identified 87 MLVA-ompA variants across 26 districts. No significant associations were found between variants and clinical signs or chlamydial load. Notably, overall Ct diversity significantly decreased after additional MDA rounds, with a higher proportion of serovar A post-MDA. Despite challenges in sequencing one VNTR locus (CT1299), MLVA-ompA demonstrated cost-effectiveness and efficiency relative to whole genome sequencing, providing valuable information for trachoma control programs on local epidemiology. The findings suggest the potential of MLVA-ompA as a reliable tool for typing ocular Ct and understanding transmission dynamics, aiding in the development of targeted interventions for trachoma control., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Harte et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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16. Wait and watch: A trachoma surveillance strategy from Amhara region, Ethiopia.
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Sata E, Seife F, Ayele Z, Murray SA, Wickens K, Le P, Zerihun M, Melak B, Chernet A, Jensen KA, Gessese D, Zeru T, Dawed AA, Debebe H, Tadesse Z, Callahan EK, Martin DL, and Nash SD
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- Humans, Infant, Ethiopia epidemiology, Anti-Bacterial Agents therapeutic use, Inflammation drug therapy, Prevalence, Recurrence, Chlamydia trachomatis, Trachoma drug therapy, Trachoma epidemiology, Trachoma prevention & control
- Abstract
Background: Trachoma recrudescence after elimination as a public health problem has been reached is a concern for control programs globally. Programs typically conduct district-level trachoma surveillance surveys (TSS) ≥ 2 years after the elimination threshold is achieved to determine whether the prevalence of trachomatous inflammation-follicular (TF) among children ages 1 to 9 years remains <5%. Many TSS are resulting in a TF prevalence ≥5%. Once a district returns to TF ≥5%, a program typically restarts costly mass drug administration (MDA) campaigns and surveys at least twice, for impact and another TSS. In Amhara, Ethiopia, most TSS which result in a TF ≥5% have a prevalence close to 5%, making it difficult to determine whether the result is due to true recrudescence or to statistical variability. This study's aim was to monitor recrudescence within Amhara by waiting to restart MDA within 2 districts with a TF prevalence ≥5% at TSS, Metema = 5.2% and Woreta Town = 5.1%. The districts were resurveyed 1 year later using traditional and alternative indicators, such as measures of infection and serology, a "wait and watch" approach., Methods/principal Findings: These post-surveillance surveys, conducted in 2021, were multi-stage cluster surveys whereby certified graders assessed trachoma signs. Children ages 1 to 9 years provided a dried blood spot and children ages 1 to 5 years provided a conjunctival swab. TF prevalence in Metema and Woreta Town were 3.6% (95% Confidence Interval [CI]:1.4-6.4) and 2.5% (95% CI:0.8-4.5) respectively. Infection prevalence was 1.2% in Woreta Town and 0% in Metema. Seroconversion rates to Pgp3 in Metema and Woreta Town were 0.4 (95% CI:0.2-0.7) seroconversions per 100 child-years and 0.9 (95% CI:0.6-1.5) respectively., Conclusions/significance: Both study districts had a TF prevalence <5% with low levels of Chlamydia trachomatis infection and transmission, and thus MDA interventions are no longer warranted. The wait and watch approach represents a surveillance strategy which could lead to fewer MDA campaigns and surveys and thus cost savings with reduced antibiotic usage., Competing Interests: The authors have declared that no competing interests exist., (Copyright: This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.)
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- 2024
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17. Gender-based violence in the context of armed conflict in Northern Ethiopia.
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Tewabe DS, Azage M, Wubetu GY, Fenta SA, Worke MD, Asres AM, Getnet WA, Kassie GG, Menber Y, Munea AM, Zeru T, Bekele SA, Abdulahi SO, Adamne TB, Belete HD, Beyene BB, Abte M, Mersha TB, Dadi AF, Enquobahrie DA, Frissa SM, and Geda YE
- Abstract
Background: Gender-based violence (GBV) particularly against women is unfortunately common during armed conflicts. No rigorous and comprehensive empirical work has documented the extent of GBV and its consequences that took place during the two years of devastating armed conflict in Northern Ethiopia. This study aims to assess GBV and its consequences in war-torn areas of northern Ethiopia., Methods: We used a qualitative method augmented by quantitative method to enroll research participants. We conducted in-depth interviews to characterize the lived experiences of GBV survivors. All interviews were conducted confidentially. The data were collected to the point of data saturation. All interviews were transcribed verbatim into local language, translated into English, and analyzed using a thematic analysis approach. We also used reports from healthcare facilities and conducted a descriptive analysis of the demographic characteristics of study participants., Results: One thousand one hundred seventy-seven persons reported GBV to healthcare providers. The qualitative study identified several forms of violence (sexual, physical, and psychological). Gang rape against women including minors as young as 14 years old girls was reported. Additionally, the perpetrators sexually violated women who were pregnant, and elderly women as old as 65 years, who took refuge in religious institutions. The perpetrators committed direct assaults on the body with items (e.g., burning the body with cigarette fire) or weapons, holding women and girls as captives, and deprivation of sleep and food. GBV survivors reported stigma, prejudice, suicide attempts, nightmares, and hopelessness. GBV survivors dealt with the traumatic stress by outmigration (leaving their residences), seeking care at healthcare facilities, self-isolation, being silent, dropping out of school, and seeking counseling., Conclusion: GBV survivors were subjected to multiple and compounding types of violence, with a wide range of adverse health consequences for survivors and their families. GBV survivors require multifaceted interventions including psychological, health, and economic support to rehabilitate them to lead a productive life., (© 2024. The Author(s).)
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- 2024
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18. Seroreversion to Chlamydia trachomatis Pgp3 antigen among children in a hyperendemic region of Amhara, Ethiopia.
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Tedijanto C, Aragie S, Gwyn S, Wittberg DM, Zeru T, Tadesse Z, Chernet A, Thompson IJB, Nash SD, Lietman TM, Martin DL, Keenan JD, and Arnold BF
- Abstract
Monitoring trachoma transmission with antibody data requires characterization of decay in IgG to Chlamydia trachomatis antigens. In a three-year longitudinal cohort in a high transmission setting, we estimated a median IgG half-life of 3 years and a seroreversion rate of 2.5 (95% CI: 1.6, 3.5) per 100 person-years., Competing Interests: CONFLICT OF INTEREST The authors report no conflicts of interest. The findings and conclusions in this article are those of the authors and do not necessarily represent the official position of the National Institutes of Health or the Centers for Disease Control and Prevention. Use of trade names is for identification only and does not imply endorsement by the Public Health Service or by the U.S. Department of Health and Human Services.
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- 2023
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19. Awareness and care seeking for long COVID symptoms among Coronavirus disease survivors in Bahir Dar City, Northwest Ethiopia: phenomenological study.
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Bogale KA, Zeru T, Tarkegn M, Balew M, Worku M, Asrat A, Adamu A, Mulu Y, Getachew A, and Ambaw F
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- Humans, Ethiopia, Behavior Therapy, Cough, Post-Acute COVID-19 Syndrome, COVID-19 epidemiology, COVID-19 therapy
- Abstract
Background: Corona Virus Disease (COVID-19) has long-term sequels that persisted for months to years and manifested with a spectrum of signs and symptoms. Presentations of long COVID-19 symptoms are heterogeneous, vary from person to person, and can reach up to over 200 symptoms. Limited studies are conducted on the awareness of long COVID-19. So, this study aimed to explore the awareness about and care seeking for long COVID-19 symptoms among COVID survivors in Bahir Dar City in 2022., Methods: A qualitative study with a phenomenological design was used. Participants of the study were individuals who survived five months or longer after they tested positive for COVID-19 in Bahir Dar city. Individuals were selected purposively. An in-depth interview guide was prepared and used to collect the data. Open Cod 4.03 software was used for coding and synthesizing. Thematic analysis was used to analyze the transcripts., Results: The themes emerged from the data were awareness, experience of symptoms and their effects, and care practices of long COVID-19. Although only one participant mentioned the common symptoms of long COVID-19 the survivors experienced general, respiratory, cardiac, digestive, neurological, and other symptoms. These symptoms include rash, fatigue fever, cough, palpitations, shortness of breath, chest pain, and abdominal pain, loss of concentration, loss of smell, sleep disorder, depression, joint and muscle pain. These symptoms brought various physical and psychosocial effects. The majority of the respondents described that long COVID-19 symptoms will go off by themselves. To alleviate the problems some of the participants had taken different measures including medical care, homemade remedies, spiritual solutions, and lifestyle modification., Conclusions: The result of this study revealed that participants have a significant deficit of awareness about the common symptoms, risk groups, and communicability of Long COVID. However, they experienced the majority of the common symptoms of Long COVID. To alleviate the problems, they had taken different measures including medical care, homemade remedies, spiritual solutions, and lifestyle modification., (© 2023. The Author(s).)
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- 2023
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20. Monitoring transmission intensity of trachoma with serology.
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Tedijanto C, Solomon AW, Martin DL, Nash SD, Keenan JD, Lietman TM, Lammie PJ, Aiemjoy K, Amza A, Aragie S, Arzika AM, Callahan EK, Carolan S, Dawed AA, Goodhew EB, Gwyn S, Hammou J, Kadri B, Kalua K, Maliki R, Nassirou B, Seife F, Tadesse Z, West SK, Wittberg DM, Zeru T, and Arnold BF
- Abstract
Trachoma, caused by ocular Chlamydia trachomatis infection, is targeted for global elimination as a public health problem by 2030. To provide evidence for use of antibodies to monitor C. trachomatis transmission, we collated IgG responses to Pgp3 antigen, PCR positivity, and clinical observations from 19,811 children aged 1- 9 years in 14 populations. We demonstrate that age-seroprevalence curves consistently shift along a gradient of transmission intensity: rising steeply in populations with high levels of infection and active trachoma and becoming flat in populations near elimination. Seroprevalence (range: 0-54%) and seroconversion rates (range: 0-15 per 100 person-years) correlate with PCR prevalence (r: 0.87, 95% CI: 0.57, 0.97). A seroprevalence threshold of 13.5% (seroconversion rate 2.75 per 100 person-years) identifies clusters with any PCR-identified infection at high sensitivity (>90%) and moderate specificity (69-75%). Antibody responses in young children provide a robust, generalizable approach to monitor population progress toward and beyond trachoma elimination.
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- 2023
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21. Rapid Bioethical Assessment for Mycobacterium tuberculosis and Host Genetic Study in Amhara Regional State, Ethiopia: Towards a Context-Specific Ethical Approach.
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Mekonnen D, Munshea A, Nibret E, Derbie A, Wubetu M, Taye M, Zeru T, Bezabih B, Azage M, Bobosha K, and Aseffa A
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- Humans, Ethiopia, Qualitative Research, Focus Groups, Mycobacterium tuberculosis genetics, Tuberculosis
- Abstract
Background: Rapid Ethical Assessment (REA) is a rapid qualitative study anticipated to understand the ethical sphere of the research setting prior to recruiting study subjects. This study assessed the communities' knowledge about tuberculosis (TB) and research, understand the social arrangements advisable for recruiting research participant and appraised the information provision and consent process., Methods: The study was conducted in Amhara region, Ethiopia from 5
th -30th January 2021. Google-based survey, face-to-face in-depth interview and focus group discussion were carried out to collect the data from researchers, data collectors, health professionals, TB program officers. A structured questionnaire was administered to assess the knowledge of TB patients and healthy controls about TB, research, gene, (co)evolution and consent process., Results: Over 71% of researchers were not satisfied with the current consent process, and 82.7% of researchers agreed that the best interest of the research participants was not adequately addressed in the current research practices in ANRS. TB patients and healthy controls misunderstood research and its goals. Participants advised the researchers to approach the community with the assistance of health extension workers (HEW) or religious/local leaders. Combined use of verbal and written based information provision at individual participant level is the preferred way for information provision., Conclusions: The adherence of researchers to standard information provision and consent process was very low. Healthy controls and TB patients have low level of knowledge and awareness about research, ethics and genomic research-related common terms. Hence, public education is required to strengthen the research ethics in the region., (© 2023 Mekonnen D., et al.)- Published
- 2023
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22. Photographic grading for trachoma diagnosis within trachoma impact surveys in Amhara region, Ethiopia.
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Whitson CC, Nute AW, Hailemariam B, Deathe AR, Astale T, Ayele Z, Gessese D, Sata E, Zerihun M, Melak B, Haile M, Zeru T, Getnet B, Wondimteka B, Kabtu E, Getachew H, Shibiru M, Bayecha S, Aragie S, Wittberg DM, Tadesse Z, Callahan EK, Keenan JD, Admassu F, and Nash SD
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- Humans, Infant, Ethiopia epidemiology, Conjunctiva, Photography, Inflammation, Prevalence, Trachoma diagnosis, Trachoma epidemiology
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Background: As countries reach the trachoma elimination threshold and cases of trachomatous inflammation follicular (TF) become rare, it becomes difficult to train survey graders to recognize clinical signs. We assess the use of photography as a grading tool, the efficiency of an in-country grading center and the comparability of field and photographic grading., Methods: During January-February 2017 surveys in Amhara, Ethiopia, field graders assessed TF, trachomatous inflammation intense (TI) and trachomatous scarring (TS). Photographs were taken from each conjunctiva and later graded at the Gondar Grading Center (GGC) at the University of Gondar in Amhara. Two trained ophthalmology residents graded each set of photographs and a third grader provided an adjudicating grade when needed., Results: A total of 4953 photographs of 2477 conjunctivae from 1241 participants in 10 communities were graded over 5 d at the GGC. Six examined participants were not photographed. Agreement between field and photographic grades were for TF: percent agreement (PA) 96.7%, κ=0.70 (95% confidence interval [CI] 0.64 to 0.77; for TI: PA 94.7%, κ=0.32 (95% CI 0.20 to 0.43); and for TS: PA 83.5%, κ=0.22 (95% CI 0.15 to 0.29)., Conclusions: Conjunctival photography may be a solution for programs near the elimination threshold where there are few available community cases for training field graders., (© The Author(s) 2022. Published by Oxford University Press on behalf of Royal Society of Tropical Medicine and Hygiene.)
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- 2023
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23. Prevalence of Ocular Chlamydia trachomatis Infection in Amhara Region, Ethiopia, after 8 Years of Trachoma Control Interventions.
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Nash SD, Chernet A, Weiss P, Nute AW, Zerihun M, Sata E, Gessese D, Jensen KA, Ayele Z, Melak B, Zeru T, Mengistu A, Abebe A, Seife F, Tadesse Z, and Callahan EK
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- Child, Child, Preschool, Humans, Infant, Anti-Bacterial Agents therapeutic use, Chlamydia trachomatis, Ethiopia epidemiology, Prevalence, Trachoma drug therapy, Trachoma epidemiology, Trachoma prevention & control
- Abstract
Although trachoma mass drug administration (MDA) programs target ocular Chlamydia trachomatis, the global trachoma control program does not monitor infection as a measure of impact but instead relies on monitoring clinical indicators. This study aimed to monitor the prevalence of ocular C. trachomatis among a population-based sample of children ages 1-5 years throughout Amhara, Ethiopia, a region that has received approximately 8 years of annual MDA as part of trachoma control. Between 2014 and 2021, trachoma impact surveys and surveillance surveys were conducted in all 156 districts of Amhara using a multistage cluster randomized methodology. Certified graders assessed individuals ages ≥ 1 year for trachomatous inflammation-follicular (TF), and a random subset of children ages 1-5 years also provided a conjunctival swab. Polymerase chain reaction was used to test for C. trachomatis. A total of 28,410 conjunctival swabs were collected from children ages 1-5 years across Amhara. The regional C. trachomatis infection prevalence was 4.7% (95% uncertainty interval: 4.3-5.1%). Infection was detected in all 10 zones of the region and ranged from 0.2% in Awi Zone to 11.9% in Waghemra Zone. Infection was detected in 17 (26%) districts with a TF prevalence < 10% and in 7 (21%) districts with a TF prevalence < 5%. Through programmatic monitoring of C. trachomatis infection, this study demonstrated that considerable infection remained throughout Amhara despite approximately 8 years of trachoma interventions and that enhanced interventions such as more frequent than annual MDA will be needed if elimination thresholds are to be reached.
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- 2023
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24. Effect of COVID-19 pandemic on missed medical appointment among adults with chronic disease conditions in Northwest Ethiopia.
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Ayele TA, Alamneh TS, Shibru H, Sisay MM, Yilma TM, Melak MF, Bisetegn TA, Belachew T, Haile M, Zeru T, Asres MS, and Shitu K
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- Adult, Appointments and Schedules, Chronic Disease, Cross-Sectional Studies, Ethiopia epidemiology, Humans, Pandemics, Retrospective Studies, COVID-19 epidemiology
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Background: COVID-19 had affected the health-care-seeking behavior of people with chronic medical conditions. The impact is even worse in resource-limited settings like Ethiopia. Therefore, this study was aimed to assess the extent and correlates of missed appointments among adults with chronic disease conditions before and during the COVID-19 pandemic in the Northwest Ethiopia., Methods: A retrospective chart review and cross-sectional survey were conducted from December 2020 to February 2021. A total of 1833 patients with common chronic disease were included by using a stratified systematic random sampling technique. Web-based data collection was done using Kobo collect. The data were explored using descriptive statistical techniques, the rate of missed appointments s before and during the COVID-19 pandemic was determined. A negative binomial regression model was fitted to identify the factors of missed appointment. An incidence rate ratio with its 95% confidence interval (CI) and p-value of the final model were reported., Results: The rate of missed appointments was 12.5% (95% CI: 11.13%, 14.20%) before the pandemic, increased to 26.8% (95% CI: 24.73%, 28.82%) during the pandemic (p-value < 0.001). Fear of COVID-19 infection and lack of transport was the most common reasons for missing appointments. Older patients (Adjusted Incidence Rate Ratio (AIRR) = 1.01, 95% CI: 1.001; 1.015), having treatment follow up more than 5 years (AIRR = 1.36, 95%CI: 1.103; 1.69), shorter frequency of follow-up (AIRR = 2.22, 95% CI: 1.63; 2.49), covering expense out of pocket (AIRR = 2.26, 95%CI: 1.41; 2.95), having a sedentary lifestyle (AIRR = 1.36, 95%CI: 1.12; 1.71), and history of missed appointments before COVID-19 pandemic (AIRR = 4.27, 95%CI: 3.35; 5.43) were positively associated with the incidence of missed appointments., Conclusion: The rate of missed appointment increased significantly during the COVID-19 pandemic. Older age, longer duration of follow up, more frequent follow-up, out-of-pocket expenditure for health service, history of poor follow-up, and sedentary lifestyle had positive relationship with missed appointments during the pandemic. Therefore, it is important to give special emphasis to individuals with these risk factors while designing and implementing policies and strategies for peoples with chronic diseases to ensure the continuity of care and to avoid the long-term impact on their health., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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25. Genomics of Ocular Chlamydia trachomatis After 5 Years of SAFE Interventions for Trachoma in Amhara, Ethiopia.
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Pickering H, Chernet A, Sata E, Zerihun M, Williams CA, Breuer J, Nute AW, Haile M, Zeru T, Tadesse Z, Bailey RL, Callahan EK, Holland MJ, and Nash SD
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- Anti-Bacterial Agents therapeutic use, Azithromycin therapeutic use, Chlamydia trachomatis genetics, Drug Resistance, Bacterial genetics, Ethiopia epidemiology, Genomics, Humans, Infant, Infant, Newborn, Macrolides therapeutic use, Prevalence, Gonorrhea drug therapy, Infant, Newborn, Diseases, Trachoma drug therapy, Trachoma epidemiology, Trachoma prevention & control
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Background: To eliminate trachoma as a public health problem, the World Health Organization recommends the SAFE (surgery, antibiotics, facial cleanliness, and environmental improvement) strategy. As part of the SAFE strategy in the Amhara Region, Ethiopia, the Trachoma Control Program distributed >124 million doses of antibiotics between 2007 and 2015. Despite this, trachoma remained hyperendemic in many districts and a considerable level of Chlamydia trachomatis (Ct) infection was evident., Methods: We utilized residual material from Abbott m2000 Ct diagnostic tests to sequence 99 ocular Ct samples from Amhara and investigated the role of Ct genomic variation in continued transmission of Ct., Results: Sequences were typical of ocular Ct at the whole-genome level and in tissue tropism-associated genes. There was no evidence of macrolide resistance in this population. Polymorphism around the ompA gene was associated with village-level trachomatous inflammation-follicular prevalence. Greater ompA diversity at the district level was associated with increased Ct infection prevalence., Conclusions: We found no evidence for Ct genomic variation contributing to continued transmission of Ct after treatment, adding to evidence that azithromycin does not drive acquisition of macrolide resistance in Ct. Increased Ct infection in areas with more ompA variants requires longitudinal investigation to understand what impact this may have on treatment success and host immunity., (© The Author(s) 2020. Published by Oxford University Press for the Infectious Diseases Society of America.)
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- 2022
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26. Predicting future community-level ocular Chlamydia trachomatis infection prevalence using serological, clinical, molecular, and geospatial data.
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Tedijanto C, Aragie S, Tadesse Z, Haile M, Zeru T, Nash SD, Wittberg DM, Gwyn S, Martin DL, Sturrock HJW, Lietman TM, Keenan JD, and Arnold BF
- Subjects
- Anti-Bacterial Agents therapeutic use, Azithromycin, Child, Child, Preschool, Chlamydia trachomatis, Ethiopia epidemiology, Humans, Infant, Infant, Newborn, Prevalence, Seroepidemiologic Studies, Trachoma prevention & control
- Abstract
Trachoma is an infectious disease characterized by repeated exposures to Chlamydia trachomatis (Ct) that may ultimately lead to blindness. Efficient identification of communities with high infection burden could help target more intensive control efforts. We hypothesized that IgG seroprevalence in combination with geospatial layers, machine learning, and model-based geostatistics would be able to accurately predict future community-level ocular Ct infections detected by PCR. We used measurements from 40 communities in the hyperendemic Amhara region of Ethiopia to assess this hypothesis. Median Ct infection prevalence among children 0-5 years old increased from 6% at enrollment, in the context of recent mass drug administration (MDA), to 29% by month 36, following three years without MDA. At baseline, correlation between seroprevalence and Ct infection was stronger among children 0-5 years old (ρ = 0.77) than children 6-9 years old (ρ = 0.48), and stronger than the correlation between active trachoma and Ct infection (0-5y ρ = 0.56; 6-9y ρ = 0.40). Seroprevalence was the strongest concurrent predictor of infection prevalence at month 36 among children 0-5 years old (cross-validated R2 = 0.75, 95% CI: 0.58-0.85), though predictive performance declined substantially with increasing temporal lag between predictor and outcome measurements. Geospatial variables, a spatial Gaussian process, and stacked ensemble machine learning did not meaningfully improve predictions. Serological markers among children 0-5 years old may be an objective tool for identifying communities with high levels of ocular Ct infections, but accurate, future prediction in the context of changing transmission remains an open challenge., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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27. Optimizing cluster survey designs for estimating trachomatous inflammation-follicular within trachoma control programs.
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Gallini JW, Sata E, Zerihun M, Melak B, Haile M, Zeru T, Gessese D, Ayele Z, Tadesse Z, Callahan EK, Nash SD, and Weiss PS
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- Azithromycin therapeutic use, Ethiopia epidemiology, Humans, Infant, Inflammation, Prevalence, Trachoma drug therapy, Trachoma epidemiology, Trachoma prevention & control
- Abstract
Objectives: The World Health Organization recommends mass drug administration (MDA) with azithromycin to eliminate trachoma as a public health problem. MDA decisions are based on prevalence estimates from two-stage cluster surveys. There is a need to mathematically evaluate current trachoma survey designs. Our study aimed to characterize the effects of the number of units sampled on the precision and cost of trachomatous inflammation-follicular (TF) estimates., Methods: A population of 30 districts was simulated to represent the breadth of possible TF distributions in Amhara, Ethiopia. Samples of varying numbers of clusters (14-34) and households (10-60) were selected. Sampling schemes were evaluated based on precision, proportion of incorrect and low MDA decisions made, and estimated cost., Results: The number of clusters sampled had a greater impact on precision than the number of households. The most efficient scheme depended on the underlying TF prevalence in a district. For lower prevalence areas (< 10%) the most cost-efficient design (providing adequate precision while minimizing cost) was 20 clusters of 20-30 households. For higher prevalence areas (> 10%), the most efficient design was 15-20 clusters of 20-30 households., Conclusions: For longer-running programs, using context-specific survey designs would allow for practical precision while reducing survey costs. Sampling 15 clusters of 20-30 households in suspected moderate-to-high prevalence districts and 20 clusters of 20-30 households in districts suspected to be near the 5% threshold appears to be a balanced approach., (Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2022
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28. First PCR Confirmed anthrax outbreaks in Ethiopia-Amhara region, 2018-2019.
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Ashenefe Wassie B, Fantaw S, Mekonene Y, Teshale AM, Yitagesu Y, Tsige E, Getahun D, Tasew G, Abichu G, Moges B, Abate E, Abayneh T, Zeru T, Belay Z, and Mor SM
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- Adolescent, Adult, Aged, Animals, Anthrax diagnosis, Anthrax epidemiology, Bacillus anthracis classification, Bacillus anthracis isolation & purification, Cats microbiology, Cattle microbiology, Child, Disease Outbreaks, Dogs microbiology, Ethiopia epidemiology, Female, Goats microbiology, Humans, Livestock microbiology, Male, Meat microbiology, Middle Aged, Polymerase Chain Reaction, Young Adult, Anthrax microbiology, Anthrax veterinary, Bacillus anthracis genetics
- Abstract
Background: Anthrax is a disease that affects humans and animals. In Ethiopia, anthrax is a reportable disease and assumed to be endemic, although laboratory confirmation has not been routinely performed until recently. We describe the findings from the investigation of two outbreaks in Amhara region., Methods: Following reports of suspected outbreaks in Wag Hamra zone (Outbreak 1) and South Gondar zone (Outbreak 2), multi-sectoral teams involving both animal and public health officials were deployed to investigate and establish control programs. A suspect case was defined as: sudden death with rapid bloating or bleeding from orifice(s) with unclotted blood (animals); and signs compatible with cutaneous, ingestion, or inhalation anthrax ≤7 days after exposure to a suspect animal (humans). Suspect human cases were interviewed using a standard questionnaire. Samples were collected from humans with suspected anthrax (Outbreak 1 and Outbreak 2) as well as dried meat of suspect animal cases (Outbreak 2). A case was confirmed if a positive test was returned using real-time polymerase chain reaction (qPCR)., Results: In Outbreak 1, a total of 49 cows died due to suspected anthrax and 22 humans developed symptoms consistent with cutaneous anthrax (40% attack rate), two of whom died due to suspected ingestion anthrax. Three people were confirmed to have anthrax by qPCR. In Outbreak 2, anthrax was suspected to have caused the deaths of two livestock animals and one human. Subsequent investigation revealed 18 suspected cases of cutaneous anthrax in humans (27% attack rate). None of the 12 human samples collected tested positive, however, a swab taken from the dried meat of one animal case (goat) was positive by qPCR., Conclusion: We report the first qPCR-confirmed outbreaks of anthrax in Ethiopia. Both outbreaks were controlled through active case finding, carcass management, ring vaccination of livestock, training of health professionals and outreach with livestock owners. Human and animal health authorities should work together using a One Health approach to improve case reporting and vaccine coverage., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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29. Water, sanitation, and hygiene for control of trachoma in Ethiopia (WUHA): a two-arm, parallel-group, cluster-randomised trial.
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Aragie S, Wittberg DM, Tadesse W, Dagnew A, Hailu D, Chernet A, Melo JS, Aiemjoy K, Haile M, Zeru T, Tadesse Z, Gwyn S, Martin DL, Arnold BF, Freeman MC, Nash SD, Callahan EK, Porco TC, Lietman TM, and Keenan JD
- Subjects
- Anti-Bacterial Agents therapeutic use, Child, Child, Preschool, Ethiopia epidemiology, Female, Humans, Infant, Infant, Newborn, Male, Trachoma drug therapy, Hygiene standards, Sanitation methods, Trachoma epidemiology, Trachoma prevention & control, Water Supply standards
- Abstract
Background: WHO promotes the SAFE strategy for the elimination of trachoma as a public health programme, which promotes surgery for trichiasis (ie, the S component), antibiotics to clear the ocular strains of chlamydia that cause trachoma (the A component), facial cleanliness to prevent transmission of secretions (the F component), and environmental improvements to provide water for washing and sanitation facilities (the E component). However, little evidence is available from randomised trials to support the efficacy of interventions targeting the F and E components of the strategy. We aimed to determine whether an integrated water, sanitation, and hygiene (WASH) intervention prevents the transmission of trachoma., Methods: The WASH Upgrades for Health in Amhara (WUHA) was a two-arm, parallel-group, cluster-randomised trial in 40 rural communities in Wag Hemra Zone (Amhara Region, Ethiopia) that had been treated with 7 years of annual mass azithromycin distributions. The randomisation unit was the school catchment area. All households within a 1·5 km radius of a potential water point within the catchment area (as determined by the investigators) were eligible for inclusion. Clusters were randomly assigned (at a 1:1 ratio) to receive a WASH intervention either immediately (intervention) or delayed until the conclusion of the trial (control), in the absence of concurrent antibiotic distributions. Given the nature of the intervention, participants and field workers could not be masked, but laboratory personnel were masked to treatment allocation. The WASH intervention consisted of both hygiene infrastructure improvements (namely, construction of a community water point) and hygiene promotion by government, school, and community leaders, which were implemented at the household, school, and community levels. Hygiene promotion focused on two simple messages: to use soap and water to wash your or your child's face, and to always use a latrine for defecation. The primary outcome was the cluster-level prevalence of ocular chlamydia, measured annually using conjunctival swabs in a random sample of children aged 0-5 years from each cluster at 12, 24, and 36 month timepoints. Analyses were done in an intention-to-treat manner. This trial is ongoing and is registered at ClinicalTrials.gov, NCT02754583., Findings: Between Nov 9, 2015, and March 5, 2019, 40 of 44 clusters assessed for eligibility were enrolled and randomly allocated to the trial groups (20 clusters each, with 7636 people from 1751 households in the intervention group and 9821 people from 2211 households in the control group at baseline). At baseline, ocular chlamydia prevalence among children aged 0-5 years was 11% (95% CI 6 to 16) in the WASH group and 11% (5 to 18) in the control group. At month 36, ocular chlamydia prevalence had increased in both groups, to 32% (24 to 41) in the WASH group and 31% (21 to 41) in the control group (risk difference across three annual monitoring visits, after adjustment for prevalence at baseline: 3·7 percentage points; 95% CI -4·9 to 12·4; p=0·40). No adverse events were reported in either group., Interpretation: An integrated WASH intervention addressing the F and E components of the SAFE strategy did not prevent an increase in prevalence of ocular chlamydia following cessation of antibiotics in an area with hyperendemic trachoma. The impact of WASH in the presence of annual mass azithromycin distributions is currently being studied in a follow-up trial of the 40 study clusters. Continued antibiotic distributions will probably be important in areas with persistent trachoma., Funding: National Institutes of Health-National Eye Institute., Translation: For the Amharic translation of the abstract see Supplementary Materials section., Competing Interests: Declaration of interests BA reports financial support to attend global health meetings from the Bill & Melinda Gates Foundation. All other authors declare no competing interests., (Copyright © 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
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- 2022
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30. Changing hygiene behaviours: a cluster-randomized trial, Ethiopia.
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Aragie S, Tadesse W, Dagnew A, Hailu D, Dubie M, Wittberg DM, Melo JS, Haile M, Zeru T, Freeman MC, Nash SD, Callahan EK, Tadesse Z, Arnold BF, Porco TC, Lietman TM, and Keenan JD
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- Child, Child, Preschool, Ethiopia, Humans, Infant, Infant, Newborn, Sanitation, Toilet Facilities, Hygiene, Trachoma prevention & control
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Objective: To determine whether a water, sanitation and hygiene intervention could change hygiene behaviours thought to be important for trachoma control., Methods: We conducted a cluster-randomized trial in rural Ethiopia from 9 November 2015 to 5 March 2019. We randomized 20 clusters to an intervention consisting of water and sanitation infrastructure and hygiene promotion and 20 clusters to no intervention. All intervention clusters received a primary-school hygiene curriculum, community water point, household wash station, household soap and home visits from hygiene promotion workers. We assessed intervention fidelity through annual household surveys., Findings: Over the 3 years, more wash stations, soap and latrines were seen at households in the intervention clusters than the control clusters: risk difference 47 percentage points (95% confidence interval, CI: 41-53) for wash stations, 18 percentage points (95% CI: 12-24) for soap and 12 percentage points (95% CI: 5-19) for latrines. A greater proportion of people in intervention clusters reported washing their faces with soap (e.g. risk difference 21 percentage points; 95% CI: 15-27 for 0-5 year-old children) and using a latrine (e.g. risk difference 9 percentage points; 95% CI: 2-15 for 6-9 year-old children). Differences between the intervention and control arms were not statistically significant for many indicators until the programme had been implemented for at least a year; they did not decline during later study visits., Conclusion: The community- and school-based intervention was associated with improved hygiene access and behaviours, although changes in behaviour were slow and required several years of the intervention., ((c) 2021 The authors; licensee World Health Organization.)
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- 2021
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31. Population-Based Prevalence of Ocular Chlamydia trachomatis Infection among Infants in the Trachoma Endemic Amhara Region, Ethiopia.
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Nash SD, Chernet A, Astale T, Sata E, Zerihun M, Nute AW, Jensen KA, Gessese D, Ayele Z, Melak B, Haile M, Zeru T, Tadesse Z, and Kelly Callahan E
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- Anti-Bacterial Agents therapeutic use, Azithromycin therapeutic use, Child, Preschool, Chlamydia trachomatis isolation & purification, Ethiopia epidemiology, Eye microbiology, Eye pathology, Female, Humans, Infant, Infant, Newborn, Infant, Newborn, Diseases drug therapy, Infant, Newborn, Diseases epidemiology, Male, Neglected Diseases drug therapy, Neglected Diseases epidemiology, Prevalence, Trachoma drug therapy, Trachoma epidemiology
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Infants ages < 6 months do not receive azithromycin as part of trachoma control and thus may serve as an infection reservoir in persistently endemic districts. The aim of this study was to determine the population-based Chlamydia trachomatis infection prevalence and infectious load among infants ages 1-12 months in persistently trachoma endemic districts in Amhara, Ethiopia. Across six districts, 475 infants were enumerated, and of these 464 (97.7%) were swabbed for infection testing. The C. trachomatis infection prevalence in the study area among infants was 0.2% (95% CI: 0.0-1.5). Among children ages 0-5 years positive for C. trachomatis, the median load was 31 elementary bodies (EB) (Inter quartile range: 7-244 EB), and the infection-positive infant had a load of 7,755 EB. While it is worth reconsidering azithromycin treatment recommendations for the potential mortality benefits, these results do not support lowering the treatment age for trachoma control.
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- 2021
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32. Targeted Antibiotics for Trachoma: A Cluster-Randomized Trial.
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Melo JS, Aragie S, Chernet A, Tadesse Z, Dagnew A, Hailu D, Haile M, Zeru T, Wittberg DM, Nash SD, Callahan EK, Arnold BF, Porco TC, Lietman TM, and Keenan JD
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- Anti-Bacterial Agents therapeutic use, Azithromycin therapeutic use, Child, Child, Preschool, Chlamydia trachomatis, Humans, Infant, Prevalence, Gonorrhea drug therapy, Trachoma drug therapy, Trachoma epidemiology
- Abstract
Background: Current guidelines recommend community-wide mass azithromycin for trachoma, but a targeted treatment strategy could reduce the volume of antibiotics required., Methods: In total, 48 Ethiopian communities were randomized to mass, targeted, or delayed azithromycin distributions. In the targeted arm, only children aged 6 months to 5 years with evidence of ocular chlamydia received azithromycin, distributed thrice over the following year. The primary outcome was ocular chlamydia at months 12 and 24, comparing the targeted and delayed arms (0-5 year-olds, superiority analysis) and the targeted and mass azithromycin arms (8-12 year-olds, noninferiority analysis, 10% noninferiority margin)., Results: At baseline, the mean prevalence of ocular chlamydia in the 3 arms ranged from 7% to 9% among 0-5 year-olds and from 3% to 9% among 8-12 year-olds. Averaged across months 12-24, the mean prevalence of ocular chlamydia among 0-5 year-olds was 16.7% (95% confidence interval [CI]: 9.0%-24.4%) in the targeted arm and 22.3% (95% CI: 11.1%-33.6%) in the delayed arm (P = .61). The final mean prevalence of ocular chlamydia among 8-12 year-olds was 13.5% (95% CI: 7.9%-19.1%) in the targeted arm and 5.5% (95% CI: 0.3%-10.7%) in the mass treatment arm (adjusted risk difference 8.5 percentage points [pp] higher in the targeted arm, 95% CI: 0.9 pp-16.1 pp higher)., Conclusions: Antibiotic treatments targeted to infected preschool children did not result in significantly less ocular chlamydia infections compared with untreated communities and did not meet noninferiority criteria relative to mass azithromycin distributions. Targeted approaches may require treatment of a broader segment of the population in areas with hyperendemic trachoma., (© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.)
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- 2021
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33. The Performance of Immunoassays to Measure Antibodies to the Chlamydia trachomatis Antigen Pgp3 in Different Epidemiological Settings for Trachoma.
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Gwyn S, Nute AW, Sata E, Tadesse Z, Chernet A, Haile M, Zeru T, Bethea D, Laurent C, Callahan EK, Nash SD, and Martin DL
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- Anti-Bacterial Agents therapeutic use, Child, Child, Preschool, Ethiopia epidemiology, Female, Humans, Immunologic Tests methods, Infant, Male, Prevalence, Seroepidemiologic Studies, Trachoma epidemiology, Antibodies, Bacterial blood, Antigens, Bacterial blood, Azithromycin therapeutic use, Chlamydia trachomatis immunology, Chlamydia trachomatis isolation & purification, Trachoma diagnosis, Trachoma immunology
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Programs to eliminate trachoma as a public health problem use prevalence of the clinical sign trachomatous inflammation-follicular (TF) in 1- to 9-year-olds in endemic districts to make decisions to begin or end mass drug administration with azithromycin. Trachomatous inflammation-follicular is used as a proxy for transmission of ocular Chlamydia trachomatis infection. Long-term monitoring of previously endemic districts for recrudescence of ocular C. trachomatis infection would benefit from a simple blood test that could be integrated with other public health programs. In this study, we evaluated multiple tests to measure antibodies against the C. trachomatis antigen Pgp3-a multiplex bead assay (MBA), an ELISA, and two versions of a lateral flow assay (LFA)-in four districts of the Amhara region of Ethiopia with varying levels of TF. Seroprevalence and seroconversion rate (SCR) results were proportional to TF prevalence by district for most tests, with the notable exception of the LFA using colloidal gold as the developing reagent. Changing the test developing reagent to black latex improved agreement between serological measures and TF prevalence and in inter-rater agreement. Seroconversion rate estimates using data derived from the LFA-gold assay were inconsistent with the shape of the age-seroprevalence curve, which did not increase in older ages. These data revealed potential complications with using SCR that will need further evaluation. Data from MBA, ELISA, and LFA with the black test line showed good agreement with each other and proportionality to TF estimates, providing further data that serology has potential utility for trachoma surveillance.
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- 2021
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34. Precision of Serologic Testing from Dried Blood Spots Using a Multiplex Bead Assay.
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Gwyn S, Aragie S, Wittberg DM, Melo JS, Dagnew A, Hailu D, Tadesse Z, Haile M, Zeru T, Nash SD, Arnold BF, Martin DL, and Keenan JD
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- Campylobacter Infections diagnosis, Campylobacter Infections epidemiology, Campylobacter Infections immunology, Campylobacter jejuni immunology, Child, Child, Preschool, Chlamydia trachomatis immunology, Cholera diagnosis, Cholera epidemiology, Cholera immunology, Cryptosporidiosis diagnosis, Cryptosporidiosis epidemiology, Cryptosporidiosis immunology, Cryptosporidium parvum immunology, Entamoeba histolytica immunology, Entamoebiasis diagnosis, Entamoebiasis epidemiology, Entamoebiasis immunology, Enterotoxigenic Escherichia coli immunology, Escherichia coli Infections diagnosis, Escherichia coli Infections epidemiology, Escherichia coli Infections immunology, Ethiopia epidemiology, Female, Giardia lamblia immunology, Giardiasis diagnosis, Giardiasis epidemiology, Giardiasis immunology, Humans, Infant, Infant, Newborn, Male, Salmonella Infections diagnosis, Salmonella Infections epidemiology, Salmonella Infections immunology, Salmonella enteritidis immunology, Salmonella typhimurium immunology, Sensitivity and Specificity, Seroepidemiologic Studies, Trachoma diagnosis, Trachoma epidemiology, Trachoma immunology, Vibrio cholerae immunology, Dried Blood Spot Testing methods, Serologic Tests methods
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Multiplex bead assays (MBAs) for serologic testing have become more prevalent in public health surveys, but few studies have assessed their test performance. As part of a trachoma study conducted in a rural part of Ethiopia in 2016, dried blood spots (DBS) were collected from a random sample of 393 children aged 0 to 9 years, with at least two separate 6-mm DBS collected on a filter card. Samples eluted from DBS were processed using an MBA on the Luminex platform for antibodies against 13 antigens of nine infectious organisms: Chlamydia trachomatis, Vibrio cholera, enterotoxigenic Escherichia coli, Cryptosporidium parvum, Entamoeba histolytica, Camplyobacter jejuni, Salmonella typhimurium Group B, Salmonella enteritidis Group D, and Giardia lamblia. Two separate DBS from each child were processed. The first DBS was run a single time, with the MBA set to read 100 beads per well. The second DBS was run twice, first at 100 beads per well and then at 50 beads per well. Results were expressed as the median fluorescence intensity minus background (MFI-BG), and classified as seropositive or seronegative according to external standards. Agreement between the three runs was high, with intraclass correlation coefficients of > 0.85 for the two Salmonella antibody responses and > 0.95 for the other 11 antibody responses. Agreement was also high for the dichotomous seropositivity indicators, with Cohen's kappa statistics exceeding 0.87 for each antibody assay. These results suggest that serologic testing on the Luminex platform had strong test performance characteristics for analyzing antibodies using DBS.
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- 2021
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35. The population-based prevalence of trachomatous scarring in a trachoma hyperendemic setting: results from 152 impact surveys in Amhara, Ethiopia.
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Astale T, Ebert CD, Nute AW, Zerihun M, Gessese D, Melak B, Sata E, Ayele Z, Ayenew G, Callahan EK, Haile M, Zeru T, Tadesse Z, and Nash SD
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- Adolescent, Adult, Aged, Child, Child, Preschool, Cicatrix, Cross-Sectional Studies, Ethiopia epidemiology, Humans, Infant, Middle Aged, Prevalence, Reproducibility of Results, Trachoma complications, Trachoma epidemiology
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Background: Trachomatous scarring (TS) results from repeated infection with the bacterium Chlamydia trachomatis. Pronounced scarring is an underlying cause of trachomatous trichiasis (TT) that can lead to blindness. Since the condition is irreversible, TS in adults has been considered a marker of past exposure to trachoma infection. The aim of this report was to estimate the population-based prevalence of TS within Amhara, Ethiopia, a region with a historically high burden of trachoma., Methods: District-level multi-stage cluster surveys were conducted in all districts between 2010 and 2015 to monitor the impact of approximately 5 years of trachoma interventions. Approximately 40 households were sampled per cluster and all participants ages ≥ 1 year were graded for the 5 World Health Organization simplified signs. Before each survey round, trachoma graders participated in a 7-day training and reliability exam that included cases of TS. TS prevalence estimates were weighted to account for sampling design and adjusted for age and sex using post-stratification weighting., Results: Across the 152 districts in Amhara, 208,510 individuals ages 1 year and older were examined for the signs of trachoma. Region-wide, the prevalence of TS was 8.2 %, (95 % Confidence Interval [CI]: 7.7-8.6 %), and the prevalence among individuals ages 15 years and older (n = 110,137) was 12.6 % (95 % CI: 12.0-13.3 %). District-level TS prevalence among individuals ages 15 years and older ranged from 0.9 to 36.9 % and was moderately correlated with district prevalence of TT (r = 0.31; P < 0.001). The prevalence of TS increased with age, reaching 22.4 % among those ages 56 to 60 years and 24.2 % among those ages 61 to 65 years. Among children ages 1 to 15 years TS prevalence was 2.2 % (95 % CI: 1.8-2.8 %), increased with age (P < 0.001), and 5 % of individuals with TS also had trachomatous inflammation-intense (TI)., Conclusions: These results suggest that Amhara has had a long history of trachoma exposure and that a large population remains at risk for developing TT. It is promising, however, that children, many born after interventions began, have low levels of TS compared to other known trachoma-hyperendemic areas.
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- 2021
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36. Prevalence of oncogenic human papillomavirus (HPV 16/18) infection, cervical lesions and its associated factors among women aged 21-49 years in Amhara region, Northern Ethiopia.
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Temesgen MM, Alemu T, Shiferaw B, Legesse S, Zeru T, Haile M, and Gelanew T
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- Adult, Ethiopia epidemiology, Female, Health Knowledge, Attitudes, Practice, Humans, Logistic Models, Middle Aged, Prevalence, Young Adult, Human papillomavirus 16 physiology, Human papillomavirus 18 physiology, Papillomavirus Infections epidemiology, Papillomavirus Infections virology, Uterine Cervical Neoplasms epidemiology, Uterine Cervical Neoplasms virology
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Background: Human papillomavirus (HPV) infection is considered as the major risk factor for the development of cervical cancer, second most frequent cancer in Ethiopia. However, the magnitude of the problem and the associated factors remain unrevealed in the Amhara region. This study aimed to determine the prevalence of HPV infection and factors contributing to the progression of HPV infection to cervical cancer., Methods: Facility-based cross-sectional study design was employed among women aged 21 to 49 years of age who came for routine cervical cancer screening to 4 randomly selected hospitals (2 general and 2 referral) of Amhara region from May to October, 2019. The sample size was calculated by using the single population proportion formula, proportionated to hospitals, and women were recruited consecutively. Socio demographic and clinical data were collected using a pretested questionnaire and detection of HPV infection was done using HPV test (OncoE6TM Cervical Test) specific to HPV16/18 in cervical swabs. Visual inspection with acetic acid (VIA) was used to determine cervical lesions (precancerous and cancerous). Descriptive statistics and bivariate and multivariate logistic regression were used to describe HR-HPV and cervical lesions burden and association between HR-HPV, and cervical lesions and potential risk factors., Results: Among 337 women 21 to 49 years (median age of 35 years ±SD = 7.1 years) of age enrolled in the study, The overall prevalence of oncogenic HPVs (HPV16/18) and the VIA-positivity rate, possible an indicative of cervical lesions, were 7.1% and 13.1%, respectively. Logistic regression analysis showed a significant association between early age of first sexual intercourse (COR = 2.26; 95% CI: 1.0-5.05) and level of education (COR = 0.31; 95% CI: 0.12-0.78) with cervical lesions. Higher odds of HPV positivity (COR = 1.56; 95% CI: 0.59-4.11, p = 0.36) and VIA positivity (COR = 1.39; 95% CI: 0.64-3.00, p = 0.39) were observed among participants who had a history of sexually transmitted illnesses (STIs)., Conclusions: There was a relatively low prevalence of oncogenic HPV 16/18 and VIA-positivity in women attending four hospitals in the Amhara Region. Early age sexual contact, high parity, and being uneducated/low level of education were independently associated factors with HR-HPV infection and development of cervical lesions, highlighting the importance of prioritizing the limited HPV testing to those risk groups., Competing Interests: The authors have declared that no competing interests exist.
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- 2021
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37. Twelve-Year Longitudinal Trends in Trachoma Prevalence among Children Aged 1-9 Years in Amhara, Ethiopia, 2007-2019.
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Sata E, Nute AW, Astale T, Gessese D, Ayele Z, Zerihun M, Chernet A, Melak B, Jensen KA, Haile M, Zeru T, Beyen M, Dawed AA, Seife F, Tadesse Z, Callahan EK, Ngondi J, and Nash SD
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- Anti-Bacterial Agents therapeutic use, Child, Child, Preschool, Communicable Disease Control organization & administration, Communicable Disease Control statistics & numerical data, Ethiopia epidemiology, Gonorrhea drug therapy, Gonorrhea epidemiology, Gonorrhea prevention & control, Humans, Infant, Longitudinal Studies, Prevalence, Public Health methods, Surveys and Questionnaires, Time Factors, Trachoma drug therapy, Communicable Disease Control methods, Public Health trends, Trachoma epidemiology, Trachoma prevention & control
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Trachoma control in the Amhara region of Ethiopia, where all districts were once endemic, began in 2001 and attained full scale-up of the Surgery, Antibiotics, Facial cleanliness, and Environmental improvement (SAFE) strategy by 2010. Since scaling up, the program has distributed approximately 14 million doses of antibiotic per year, implemented village- and school-based health education, and promoted latrine construction. This report aims to provide an update on the prevalence of trachoma among children aged 1-9 years as of the most recent impact or surveillance survey in all 160 districts of Amhara. As of 2019, 45 (28%) districts had a trachomatous inflammation-follicular (TF) prevalence below the 5% elimination threshold. There was a statistically significant relationship between TF prevalence observed at the first impact survey (2010-2015) and eventual achievement of TF < 5% (2015-2019). Of the 26 districts with a first impact survey < 10% TF, 20 (76.9%) had < 5% TF at the most recent survey. Of the 75 districts with a first survey between 10% and 29.9% TF, 21 (28.0%) had < 5% TF at the most recent survey. Finally, among 59 districts ≥ 30% TF at the first survey, four (6.8%) had < 5% TF by 2019. As of 2019, 30 (18.8%) districts remained with TF ≥ 30%. Amhara has seen considerable reductions of trachoma since the start of the program. A strong commitment to the SAFE strategy coupled with data-driven enhancements to that strategy is necessary to facilitate timely elimination of trachoma as a public health problem regionally in Amhara and nationwide in Ethiopia.
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- 2021
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38. Population-Based Prevalence of Chlamydia trachomatis Infection and Antibodies in Four Districts with Varying Levels of Trachoma Endemicity in Amhara, Ethiopia.
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Nash SD, Astale T, Nute AW, Bethea D, Chernet A, Sata E, Zerihun M, Gessese D, Ayenew G, Ayele Z, Melak B, Haile M, Zeru T, Tadesse Z, Arnold BF, Callahan EK, and Martin DL
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- Anti-Bacterial Agents administration & dosage, Child, Child, Preschool, Ethiopia epidemiology, Female, Humans, Infant, Male, Mass Drug Administration, Population Surveillance, Prevalence, Anti-Bacterial Agents therapeutic use, Antibodies, Bacterial, Chlamydia trachomatis isolation & purification, Trachoma epidemiology, Trachoma microbiology
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The Trachoma Control Program in Amhara region, Ethiopia, scaled up the surgery, antibiotics, facial cleanliness, and environmental improvement (SAFE) strategy in all districts starting in 2007. Despite these efforts, many districts still require additional years of SAFE. In 2017, four districts were selected for the assessment of antibody responses against Chlamydia trachomatis antigens and C. trachomatis infection to better understand transmission. Districts with differing endemicity were chosen, whereby one had a previous trachomatous inflammation-follicular (TF) prevalence of ≥ 30% (Andabet), one had a prevalence between 10% and 29.9% (Dera), one had a prevalence between 5% and 10% (Woreta town), and one had a previous TF prevalence of < 5% (Alefa) and had not received antibiotic intervention for 2 years. Survey teams assessed trachoma clinical signs and took conjunctival swabs and dried blood spots (DBS) to measure infection and antibody responses. Trachomatous inflammation-follicular prevalence among children aged 1-9 years was 37.0% (95% CI: 31.1-43.3) for Andabet, 14.7% (95% CI: 10.0-20.5) for Dera, and < 5% for Woreta town and Alefa. Chlamydia trachomatis infection was only detected in Andabet (11.3%). Within these districts, 2,195 children provided DBS. The prevalence of antibody responses to the antigen Pgp3 was 36.9% (95% CI: 29.0-45.6%) for Andabet, 11.3% (95% CI: 5.9-20.6%) for Dera, and < 5% for Woreta town and Alefa. Seroconversion rate for Pgp3 in Andabet was 0.094 (95% CI: 0.069-0.128) events per year. In Andabet district, where SAFE implementation has occurred for 11 years, the antibody data support the finding of persistently high levels of trachoma transmission.
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- 2021
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39. Magnitude and factors associated with upper respiratory tract infection among under-five children in public health institutions of Aksum town, Tigray, Northern Ethiopia: an institutional based cross-sectional study.
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Zeru T, Berihu H, Buruh G, and Gebrehiwot H
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- Adolescent, Adult, Child, Preschool, Cross-Sectional Studies, Ethiopia, Female, Humans, Infant, Male, Risk Factors, Socioeconomic Factors, Young Adult, Family Characteristics, Residence Characteristics statistics & numerical data, Respiratory Tract Infections epidemiology
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Introduction: upper respiratory tract infection is a leading cause of morbidity among under-five, particularly in the developing countries. Delays in the identification and treatment of under-fives are among the main contributors to the complication. The aim of this study was to assess the magnitude and to identify factors associated with upper respiratory tract infection among under-five children, in public health institutions of Aksum City, Tigray Region, North Ethiopia, 2016., Methods: institutional based cross-sectional study was done. Cases were under-five children who had get service. The study participants were selected using Systematic random sampling technique. Data were entered, using Epi-info version 7 and analyzed using SPSS version 22.0. Clinical data from the chart were used to diagnose upper respiratory tract infection types. The binary logistic regression model was used to test the association between dependent and independent variables and multivariable logistic regression was used to identify the associated factors to upper respiratory tract infections., Results: out of 213 study participants 52.6% identified as having at least one type of upper respiratory tract infection, i.e. sinusitis 22 (10.3%), 37 (17.4%) otitis media, 39 (18.3%) tonsillitis and common cold 83 (39.0%). Multivariable logistic regression analysis shows that rural residence 7.6 [AOR (95%CI) (2.49, 23.58)], civil servant father's children 4.49 [AOR (95%CI) (1.57, 12.83)], non-immunization 6.0 [AOR(95%CI) (1.38, 26.8)], mud house wall 4.58 [AOR (95%CI) (1.74, 12.0)], rental house 5.1 [AOC (95% CI) (1.82, 14.6] and large family size 5.3 [AOC (95%CI) (2.3, 12.1 )], were found to be statistically associated., Conclusion: socioeconomic, maternal and environmental factors had contributed to the upper respiratory tract infection. Strengthening of the existing disease prevention policy as well as improvement of institutional health service behavior is crucial., Competing Interests: The authors declare no competing interests., (Copyright: Teklay Zeru et al.)
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- 2020
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40. Parental knowledge and practice on antibiotic use for upper respiratory tract infections in children, in Aksum town health institutions, Northern Ethiopia: a cross-sectional study.
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Zeru T, Berihu H, Buruh G, Gebrehiwot H, and Zeru M
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- Adult, Child, Cross-Sectional Studies, Ethiopia, Female, Humans, Male, Middle Aged, Surveys and Questionnaires, Young Adult, Anti-Bacterial Agents therapeutic use, Health Knowledge, Attitudes, Practice, Parents psychology, Respiratory Tract Infections drug therapy
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Introduction: worldwide, antibiotics are the most commonly prescribed and abused drugs for upper respiratory tract infections. Acute upper respiratory infections are common in children who attend childcare and preventing transmission of disease in health setting depends on actions by parents and staff. Therefore the objective of this study is to assess the parental knowledge and practice on antibiotic use for upper respiratory tract infections in children, in Aksum town health institutions, northern Ethiopia, 2018., Methods: a facility-based cross-sectional study design was adopted involving 384 parents of children visited governmental health facilities in Aksum town from February to March, 2018. Respondents were selected based on the proportion of nurses in the health facilities. SPSS version 22 was applied for data entry and analysis., Results: the total number of questionnaires was 384 resulting in a 100% response rate. Almost half of the parents had poor knowledge of the use of antibiotics in children for URTIs 183(47.7%), followed by 156(40.6%) moderate knowledge and 45(11.7%) good knowledge. Practices regarding antibiotic use in children with URTI varied. Only 12.8% of the parents did not always follow the doctors´ advice regarding antibiotic use. In this study has reported many areas in which parental awareness on antibiotic use for acute URTI is considered inadequate, consequently inappropriate knowledge and practices., Conclusion: nearly half of the parents attending the physicians for their children with URTI expected to get antibiotics., Competing Interests: The authors declare no competing interests., (© Teklay Zeru et al.)
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- 2020
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41. Assessment of knowledge and attitude towards palliative care and associated factors among nurses working in selected Tigray hospitals, northern Ethiopia: a cross-sectional study.
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Zeru T, Berihu H, Gerensea H, Teklay G, Teklu T, Gebrehiwot H, and Wubayu T
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- Adult, Cross-Sectional Studies, Ethiopia, Female, Humans, Male, Middle Aged, Surveys and Questionnaires, Young Adult, Attitude of Health Personnel, Health Knowledge, Attitudes, Practice, Nursing Staff, Hospital statistics & numerical data, Palliative Care organization & administration
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Introduction: Palliative care is a multidisciplinary approach which is focused on both the patient and their family. Therefore the objectives of the study is to assess the knowledge and attitude towards palliative care and its associated factors among nurses in Tigray, Northern Ethiopia, 2018., Methods: An institutional based cross-sectional quantitative study design was carried out using 355 nurses working in selected hospitals in Tigray region from February to March, 2018. Systematic random sampling was used to select six governmental hospitals. We used triangulation in the study method, making use of both Frommelt's Attitude Toward Care of the Dying (FATCOD) scale, and Palliative Care Quiz for Nursing (PCQN) knowledge. SPSS were applied for data entry and analysis. Statistical significance was declared at P<0.05. The goodness of fit the final logistic model was tested by using the Hosmer and Lemeshow test at a value of > 0.05., Results: All the participants were able to respond. Out of the total study participants, 223 (62.8%) had good knowledge and 200 (56.3%) had a favorable attitude towards Palliative care. A medical ward had (AOR = 3.413, CI = 1.388-8.392, P = 0.019), trained Nurses [AOR = 3.488; CI = 1.735-7.015; P = 0.00) significant associated with nurses knowledge towards palliative care. Nurses working in the lemlem Karl (AOR=2.541; 95% CI; 0.013(1.106-5.835), nurses who had a 20-30 years ago had unfavorable attitude (AOR = 2.660; 95% CI; 0.002(1.386-5.106) were significant., Conclusion: The nurses had poor knowledge. However, their attitude towards palliative care (PC) was favorable., Competing Interests: The authors declare no competing interests., (© Teklay Zeru et al.)
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- 2020
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42. Practice on pressure ulcer prevention among nurses in selected public hospitals, Tigray, Ethiopia.
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Berihu H, Wubayehu T, Teklu T, Zeru T, and Gerensea H
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- Adult, Cross-Sectional Studies, Ethiopia, Female, Health Services Research, Humans, Middle Aged, Young Adult, Attitude of Health Personnel, Health Knowledge, Attitudes, Practice, Hospitals, Public statistics & numerical data, Nursing Staff, Hospital statistics & numerical data, Pressure Ulcer prevention & control
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Objectives: Pressure ulcers are localized cellular damages to the skin and underlying tissues caused by pressure, shearing and frictional force. The aim of this study is to assess practices towards pressure ulcer prevention among nurses in the Central Zone of Tigray, Ethiopia, from September 10, 2017 to June 15, 2018. This study has also identified the major barriers that hamper nurses from preventing pressure ulcers. These barriers were heavy workload, inadequate training, and lack of universal guideline and shortage of resource. 17.2% of the participants had a good practice and 82.2% of the respondents had a poor practice of pressure ulcer prevention., Result: Finding of this study showed that respondents have inadequate knowledge which may have led to their poor practice towards pressure ulcer prevention. Immediate intervention should be done on public hospitals of central Tigray to improve nurses' practice towards pressure ulcer prevention.
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- 2020
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43. Nurses practice towards palliative care in Shire Endasilasie health facilities, Northern Ethiopia: a cross-sectional study.
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Zeru T, Gerensea H, Berihu H, Zeru M, and Wubayehu T
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- Adult, Cross-Sectional Studies, Delivery of Health Care organization & administration, Ethiopia, Female, Humans, Male, Middle Aged, Nurses statistics & numerical data, Surveys and Questionnaires, Young Adult, Health Knowledge, Attitudes, Practice, Nurses organization & administration, Palliative Care organization & administration
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Introduction: The public health strategy of the World Health Organization for palliative care is to increase access to palliative care services by integrating it with the healthcare systems. Therefore, the value of palliative care service provision by nurses who deliver the majority of care to chronical patients is an important issue. The objective of the study is assessing nurses' practice of palliative care., Methods: A facility based cross-sectional study was carried out among 278 nurses working in governmental health facilities of Shire Endasilasie town, Tigray region, Ethiopia from February to June 2018. The questionnaire was revised based on the findings of the pre-test. The collected data was checked for its completeness, consistency, and accuracy before analysis. Data were entered and analyzed using SPSS version 22. The final result was reported using text and tables., Results: A total of 278 nurses were included in the study and the response rate was 100%. The majority of the participants (71.9%) were females and the mean age of the respondents was 32.08 years (range from 20 to 60). Approximately two-thirds (74.8%) of the respondents had poor knowledge of palliative care practice. Half of the study participants reported emotional support gained as primary psychological support. Commonly used drugs for severe pain were paracetamol or ibuprofen 202 (72.2%) and 47.8% nurses focus on quality patient pain assess., Conclusion: The majority of the nurses had a poor practice of palliative care., Competing Interests: The authors declare no competing interests., (© Teklay Zeru et al.)
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- 2020
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44. Prevalence and associated factors of chronic kidney disease among adult hypertensive patients in Tigray teaching hospitals: a cross-sectional study.
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Bahrey D, Gebremedhn G, Mariye T, Girmay A, Aberhe W, Hika A, Teklay G, Tasew H, Zeru T, Gerensea H, and Demoz GT
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- Adult, Aged, Aged, 80 and over, Comorbidity, Cross-Sectional Studies, Ethiopia epidemiology, Female, Humans, Male, Middle Aged, Prevalence, Surveys and Questionnaires, Diabetes Mellitus epidemiology, Hospitals, Teaching, Hypertension epidemiology, Obesity epidemiology, Renal Insufficiency, Chronic epidemiology
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Objective: The aim of this study was to assess the prevalence of chronic kidney disease and to identify associated factors of chronic kidney disease among hypertensive patients. A cross-sectional study was conducted among selected 578 hypertensive patients. Data were collected using face to face interviewing questionnaires and from medical chart review. Binary logistic regression analyses were performed and analyzed using SPSS version 23.0., Result: Of the total 578 hypertensive patients the prevalence of chronic kidney disease was found to be 128 (22.1%). Of these hypertensive patients, patients with uncontrolled blood pressure, overweight/obesity, dyslipidemia and diabetic mellitus, 43.3%, 33.7%, 27.3% and 28.2 respectively. After adjustment, the independent variables the significant associated factors of chronic kidney disease among hypertensive patients were age [AOR (95% CI 1.43 (1.07-1.81)], uncontrolled hypertension 4.434 [AOR (95% CI 9.45 (1.34, 14.73)], overweight/obese [AOR (95% CI 7.422 (2.72, 20.28)], dyslipidemia [AOR (95% CI) 13.749 (5.69, 33.215)], diabetic mellitus [AOR (95% CI) 2.137 (1.07, 4.26)]. In conclusion, the prevalence of chronic kidney disease was considerably high. The major associated factors of chronic kidney disease were age, uncontrolled hypertension, overweight/obese, diabetic mellitus and dyslipidemia.
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- 2019
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45. Risk factors of preterm birth among mothers who gave birth in public hospitals of central zone, Tigray, Ethiopia: unmatched case-control study 2017/2018.
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Teklay G, Teshale T, Tasew H, Mariye T, Berihu H, and Zeru T
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- Adult, Case-Control Studies, Ethiopia, Female, Humans, Infant, Newborn, Mothers, Pregnancy, Risk Factors, Young Adult, Hospitals, Public statistics & numerical data, Premature Birth epidemiology
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Objective: The aim of the study was to identify the risk factors for preterm birth in public hospitals of the central zone, Tigray, Ethiopia 2017/2018., Result: A total of 88 neonates who born preterm (cases) and 176 neonates who born term (controls) with their index mothers were included making a response rate of 100%. About 84/88 (95.5%) mothers in cases and 173/176 (98.3%) in control had antenatal care follow up. Among them, 33 (39.3%) cases and 102 (58%) controls were had antenatal care follow up four times and above. In multiple logistic regression at P-value < 0.05, mothers with ANC follow up less than four [AOR 95% CI 2.15 (1.19, 3.85)], mothers with pregnancy-induced hypertension [AOR 3.245; 95% CI (1.58, 6.67)], multiple pregnancy [AOR 2.47; 95% CI (1.14, 5.33)], fetal distress [AOR 4.0; 95% CI (1.9, 8.2)] and birth defect [AOR 3.19; 95% CI (1.22, 8.34)] were independent risk factors of preterm delivery.
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- 2018
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46. Consistency of Integrated Management of Newborn and Childhood Illness (IMNCI) in Shire Governmental Health Institution in 2017.
- Author
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Gerensea H, Kebede A, Baraki Z, Berihu H, Zeru T, Birhane E, G/Her D, Hintsa S, Siyum H, Kahsay G, Gidey G, Teklay G, and Mulatu G
- Subjects
- Child, Child, Preschool, Government, Humans, Infant, Child Health Services, Disease Management, Health Facilities, Infant Mortality
- Abstract
Objective: In an effort to reduce infant mortality and morbidity, the World Health Organization and other technical partners developed the Integrated Management of Newborn and Childhood Illness (IMNCI). This study focuses on assessment of consistency and completeness of integrated management of neonatal and child hood illness in primary health care units., Results: A total of 384 cases were taken from 3562 cases both from young infant registration (under-2 month old) and child registration (2 months-5 year old). Out of 384 cases, 241 (62.8%) cases were correctly classified and 143 (37.2%) were incorrect classifications. Similarly 164 (42.7%) cases were treated correctly where as 220 (57.3%) treated incorrectly. Only 95 (24.7%) cases have given appropriate appointments where as 289 (75.3%) cases were appointed incorrectly. The overall consistency of IMNCI management is poor. Unless continuous follow up of and training was given, children are not treated as expected. More over using electronic method of IMNCI may alleviate the problem.
- Published
- 2018
- Full Text
- View/download PDF
47. Dietary Fluoride Intake and Associated Skeletal and Dental Fluorosis in School Age Children in Rural Ethiopian Rift Valley.
- Author
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Kebede A, Retta N, Abuye C, Whiting SJ, Kassaw M, Zeru T, Tessema M, and Kjellevold M
- Subjects
- Bone Diseases epidemiology, Bone Diseases etiology, Calcium metabolism, Child, Diet, Environment, Ethiopia epidemiology, Fluorides analysis, Fluorides urine, Humans, Male, Prevalence, Prospective Studies, Rural Population, Fluoride Poisoning epidemiology, Fluoride Poisoning etiology, Fluorides toxicity, Fluorosis, Dental epidemiology, Water chemistry, Water Supply
- Abstract
An observational study was conducted to determine dietary fluoride intake, diet, and prevalence of dental and skeletal fluorosis of school age children in three fluorosis endemic districts of the Ethiopian Rift Valley having similar concentrations of fluoride (F) in drinking water (~5 mg F/L). The duplicate plate method was used to collect foods consumed by children over 24 h from 20 households in each community (n = 60) and the foods, along with water and beverages, were analyzed for fluoride (F) content. Prevalence of dental and skeletal fluorosis was determined using presence of clinical symptoms in children (n = 220). Daily dietary fluoride intake was at or above tolerable upper intake level (UL) of 10 mg F/day and the dietary sources (water, prepared food and beverages) all contributed to the daily fluoride burden. Urinary fluoride in children from Fentale and Adamitulu was almost twice (>5 mg/L) the concentration found in urine from children from Alaba, where rain water harvesting was most common. Severe and moderate dental fluorosis was found in Alaba and Adamitulu, the highest severity and prevalence being in the latter district where staple foods were lowest in calcium. Children in all three areas showed evidence of both skeletal and non-skeletal fluorosis. Our data support the hypothesis that intake of calcium rich foods in addition to using rain water for household consumption and preparation of food, may help in reducing risk of fluorosis in Ethiopia, but prospective studies are needed.
- Published
- 2016
- Full Text
- View/download PDF
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