22 results on '"Kebede, Yenew"'
Search Results
2. Improved Specimen-Referral System and Increased Access to Quality Laboratory Services in Ethiopia: The Role of the Public-Private Partnership.
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Kebede, Yenew, Fonjungo, Peter N., Tibesso, Gudeta, Shrivastava, Ritu, Nkengasong, John N., Kenyon, Thomas, Kebede, Amha, Gadde, Renuka, and Ayana, Gonfa
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MEDICAL education , *COLLECTION & preservation of biological specimens , *COMPARATIVE studies , *LABORATORIES , *RESEARCH methodology , *MEDICAL cooperation , *MEDICAL referrals , *NATIONAL health services , *QUALITY assurance , *RESEARCH , *RESEARCH funding , *TIME , *EVALUATION research , *INSTITUTIONAL cooperation - Abstract
Background: Nonstandardized specimen-transport logistics, lack of laboratory personnel to transport specimens, lack of standard specimen containers, and long turnaround time (TAT) hindered access to quality laboratory services. The objective of the Becton, Dickinson, and Company (BD)-US President's Emergency Plan for AIDS Relief (PEPFAR) Public-Private Partnership (PPP) was to support country-specific programs to develop integrated laboratory systems, services, and quality improvement strategies, with an emphasis on strengthening the specimen-referral system (SRS).Methods: In 2007, through the Centers for Disease Control and Prevention (CDC), the Ethiopian Public Health Institute (EPHI) joined with the BD-PEPFAR PPP to strengthen laboratory systems. A joint planning and assessment committee identified gaps in the SRS for prioritization and intervention and piloted the system in Addis Ababa and Amhara Region.Results: The PPP established standardized, streamlined specimen logistics, using the Ethiopian Postal Service Enterprise to support a laboratory network in which 554 facilities referred specimens to 160 laboratories. The PPP supported procuring 400 standard specimen containers and the training of 586 laboratory personnel and 81 postal workers. The average TAT was reduced from 7 days (range, 2-14 days) to 2 days (range, 1-3 days) in Addis Ababa and from 10 days (range, 6-21 days) to 5 days (range, 2-6 days) in Amhara Region.Conclusions: This study highlights the feasibility and untapped potential of PPPs to strengthen laboratory systems. This planned and structured approach to improving specimen referral enhanced access to quality laboratory services. [ABSTRACT FROM AUTHOR]- Published
- 2016
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3. Preservice laboratory education strengthening enhances sustainable laboratory workforce in Ethiopia.
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Fonjungo, Peter N., Kebede, Yenew, Arneson, Wendy, Tefera, Derese, Yimer, Kedir, Kinde, Samuel, Alem, Meseret, Cheneke, Waqtola, Mitiku, Habtamu, Tadesse, Endale, Tsegaye, Aster, and Kenyon, Thomas
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EDUCATION of medical technologists , *MEDICAL personnel training , *MEDICAL education , *TEACHING aids - Abstract
Background There is a severe healthcare workforce shortage in sub Saharan Africa, which threatens achieving the Millennium Development Goals and attaining an AIDS-free generation. The strength of a healthcare system depends on the skills, competencies, values and availability of its workforce. A well-trained and competent laboratory technologist ensures accurate and reliable results for use in prevention, diagnosis, care and treatment of diseases. Methods An assessment of existing preservice education of five medical laboratory schools, followed by remedial intervention and monitoring was conducted. The remedial interventions included 1) standardizing curriculum and implementation; 2) training faculty staff on pedagogical methods and quality management systems; 3) providing teaching materials; and 4) procuring equipment for teaching laboratories to provide practical skills to complement didactic education. Results A total of 2,230 undergraduate students from the five universities benefitted from the standardized curriculum. University of Gondar accounted for 252 of 2,230 (11.3%) of the students, Addis Ababa University for 663 (29.7%), Jimma University for 649 (29.1%), Haramaya University for 429 (19.2%) and Hawassa University for 237 (10.6%) of the students. Together the universities graduated 388 and 312 laboratory technologists in 2010/2011 and 2011/2012 academic year, respectively. Practical hands-on training and experience with well-equipped laboratories enhanced and ensured skilled, confident and competent laboratory technologists upon graduation. Conclusions Strengthening preservice laboratory education is feasible in resource-limited settings, and emphasizing its merits (ample local capacity, country ownership and sustainability) provides a valuable source of competent laboratory technologists to relieve an overstretched healthcare system. [ABSTRACT FROM AUTHOR]
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- 2013
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4. Laboratory equipment maintenance: A critical bottleneck for strengthening health systems in sub-Saharan Africa?
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Fonjungo, Peter N, Kebede, Yenew, Messele, Tsehaynesh, Ayana, Gonfa, Tibesso, Gudeta, Abebe, Almaz, Nkengasong, John N, and Kenyon, Thomas
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LABORATORY equipment & supplies , *PREVENTIVE medicine , *MEDICAL care , *LABORATORIES , *LABORATORY equipment & supplies manufacturing - Abstract
Properly functioning laboratory equipment is a critical component for strengthening health systems in developing countries. The laboratory can be an entry point to improve population health and care of individuals for targeted diseases - prevention, care, and treatment of TB, HIV/AIDS, and malaria, plus maternal and neonatal health - as well as those lacking specific attention and funding. We review the benefits and persistent challenges associated with sustaining laboratory equipment maintenance. We propose equipment management policies as well as a comprehensive equipment maintenance strategy that would involve equipment manufacturers and strengthen local capacity through pre-service training of biomedical engineers. Strong country leadership and commitment are needed to assure development and sustained implementation of policies and strategies for standardization of equipment, and regulation of its procurement, donation, disposal, and replacement. [ABSTRACT FROM AUTHOR]
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- 2012
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5. Artificial intelligence to transform public health in Africa.
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Tanui, Collins Kipngetich, Ndembi, Nicaise, Kebede, Yenew, and Tessema, Sofonias Kifle
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ARTIFICIAL intelligence , *PUBLIC health - Published
- 2024
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6. High Level of HIV Drug Resistance and Virologic Nonsuppression Among Female Sex Workers in Ethiopia: A Nationwide Cross-Sectional Study.
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Arimide, Dawit Assefa, Amogne, Minilik Demissie, Kebede, Yenew, Balcha, Taye T., Adugna, Fekadu, Ramos, Artur, DeVos, Joshua, Zeh, Clement, Agardh, Anette, Chih-Wei Chang, Joy, Bjorkman, Per, and Medstrand, Patrik
- Abstract
Objective: To determine viral load (VL) nonsuppression (VLN) rates, HIV drug resistance (HIVDR) prevalence, and associated factors among female sex workers (FSWs) in Ethiopia. Methods: A cross-sectional biobehavioral survey was conducted among FSWs in 11 cities in Ethiopia in 2014. Whole blood was collected, and HIVDR genotyping was performed. Logistic regression analysis was performed to identify factors associated with VLN and HIVDR. Results: Among 4900 participants, 1172 (23.9%) were HIV-positive and 1154 (98.5%) had a VL result. Participants were categorized into antiretroviral therapy (ART) (n = 239) and ART-naive (n = 915) groups based on self-report. From the 521 specimens (ART, 59; ART-naive, 462) with VL >=1000 copies/mL, genotyping was successful for 420 (80.6%) and 92 (21.9%) had drug resistance mutations (DRMs). Pretreatment drug resistance (PDR) was detected in 16.5% (63/381) of the ART-naive participants. Nucleoside reverse transcriptase inhibitor (NRTI), non-NRTIs (NNRTIs), and dual-class DRMs were detected in 40 (10.5%), 55 (14.4%), and 35 (9.2%) of the participants, respectively. Among 239 participants on ART, 59 (24.7%) had VLN. Genotyping was successfully performed for 39 (66.1%). DRMs were detected in 29 (74.4%). All 29 had NNRTI, 23 (79.3%) had NRTI or dual-class DRMs. VLN was associated with age 35 years or older, CD4+ T-cell count <350 cells/mm3, and being forced into selling sex. PDR and acquired drug resistance were associated with CD4+ T-cell count <350 cells/mm3 (P < 0.001). Conclusions: The high VLN and HIVDR rates among FSWs underscore the need for targeted interventions to improve ART access and virologic monitoring to maximize the benefit of ART and limit the spread of HIV and HIVDR. [ABSTRACT FROM AUTHOR]
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- 2022
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7. The Looming Threat of Dengue Fever: The Africa Context.
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Mercy, Kyeng, Youm, Eric, Aliddeki, Dativa, Faria, Nuno R, Kebede, Yenew, and Ndembi, Nicaise
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SOLUTION strengthening , *DENGUE , *POLITICAL refugees , *GLOBAL warming , *DEATH rate , *DENGUE hemorrhagic fever - Abstract
In Africa, compared to 2019, dengue infections have surged ninefold by December 2023, with over 270 000 cases and 753 deaths reported across 18 African Union (AU) Member States. This commentary synthesises the context of dengue outbreaks in Africa and provides recommendations for sustainable control. In 2023, 18 African Union Member States reported outbreaks of dengue, among which seven had ongoing armed conflicts. These countries were amongst the top 15 African countries contributing to the most displaced persons on the continent and accounted for 98% of all dengue cases reported in the continent in 2023. Climate change remains an important driver, both through the displacement of people and global warming. The continent continues to face several challenges in detection, reporting and management, such as the lack of local laboratory capacity, misclassification of dengue cases and lack of medical countermeasures. Solutions targeting the strengthening of cross-border surveillance and early warning systems using a multisectoral one-health approach, local research and development for therapeutics and diagnostics and community engagement empowering communities to protect themselves and understand the gravity of the threat could help curb the spread of the disease in Africa. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Genomic-informed pathogen surveillance in Africa: opportunities and challenges.
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Inzaule, Seth C, Tessema, Sofonias K, Kebede, Yenew, Ogwell Ouma, Ahmed E, and Nkengasong, John N
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PUBLIC health surveillance , *COVID-19 pandemic , *DISEASE outbreaks , *INFORMATION sharing - Abstract
The ongoing COVID-19 pandemic has highlighted the need to incorporate pathogen genomics for enhanced disease surveillance and outbreak management in Africa. The genomics of SARS-CoV-2 has been instrumental to the timely development of diagnostics and vaccines and in elucidating transmission dynamics. Global disease control programmes, including those for tuberculosis, malaria, HIV, foodborne pathogens, and antimicrobial resistance, also recommend genomics-based surveillance as an integral strategy towards control and elimination of these diseases. Despite the potential benefits, capacity remains low for many public health programmes in Africa. The COVID-19 pandemic presents an opportunity to reassess and strengthen surveillance systems and potentially integrate emerging technologies for preparedness of future epidemics and control of endemic diseases. We discuss opportunities and challenges for integrating pathogen genomics into public health surveillance systems in Africa. Improving accessibility through the creation of functional continent-wide networks, building multipathogen sequencing cores, training a critical mass of local experts, development of standards and policies to facilitate best practices for data sharing, and establishing a community of practice of genomics experts are all needed to use genomics for improved disease surveillance in Africa. Coordination and leadership are also crucial, which the Africa Centres for Disease Control and Prevention seeks to provide through its institute for pathogen genomics. [ABSTRACT FROM AUTHOR]
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- 2021
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9. Boosting pathogen genomics and bioinformatics workforce in Africa.
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Onywera, Harris, Ondoa, Pascale, Nfii, Faith, Ogwell, Ahmed, Kebede, Yenew, Christoffels, Alan, and Tessema, Sofonias K
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PUBLIC health surveillance , *GENOMICS , *COVID-19 pandemic , *HEALTH facilities , *LABOR supply - Abstract
Next-generation sequencing (NGS) of genomic data has established its fundamental value in public health surveillance, research and development, and precision medicine. In Africa, severe shortages of competent experts in genomics and bioinformatics, few opportunities for research, and inadequate genomic infrastructure have had a knock-on effect on the use of NGS technologies for research and public health practice. Several reasons—ranging from poor funding, inadequate infrastructure for training and practice, to brain drain—might partly account for the scarcity of genomics and bioinformatics expertise in the region. In recognition of these shortcomings and the importance of NGS genomic data, which was amplified during the COVID-19 pandemic in mid-2021, the Africa Centres for Disease Control and Prevention (Africa CDC) through the Africa Pathogen Genomics Initiative began building and expanding Africa's workforce in pathogen surveillance. By the end of 2022, the Africa CDC in collaboration with its partners and centres of excellence had trained 413 personnel, mostly from public health institutions, in 53 (96%) of 55 African Union Member States. Although this training has increased genomics, bioinformatics, and genomic epidemiology literacy, and genomic-informed pathogen surveillance, there is still a need for a strategic and sustainable public health workforce development in Africa. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Building Integrated Testing Programs for Infectious Diseases.
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Alemnji, George, Mosha, Fausta, Maggiore, Paolo, Alexander, Heather, Ndlovu, Nqobile, Kebede, Yenew, Tiam, Appolinaire, Albert, Heidi, Edgil, Dianna, Lussigny, Smiljka de, and Peter, Trevor
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SARS-CoV-2 , *COMMUNICABLE diseases , *SEXUALLY transmitted diseases , *HIV - Abstract
In the past 2 decades, testing services for diseases such as human immunodeficiency virus (HIV), tuberculosis, and malaria have expanded dramatically. Investments in testing capacity and supportive health systems have often been disease specific, resulting in siloed testing programs with suboptimal capacity, reduced efficiency, and limited ability to introduce additional tests or respond to new outbreaks. Emergency demand for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing overcame these silos and demonstrated the feasibility of integrated testing. Moving forward, an integrated public laboratory infrastructure that services multiple diseases, including SARS-CoV-2, influenza, HIV, tuberculosis, hepatitis, malaria, sexually transmitted diseases, and other infections, will help improve universal healthcare delivery and pandemic preparedness. However, integrated testing faces many barriers including poorly aligned health systems, funding, and policies. Strategies to overcome these include greater implementation of policies that support multidisease testing and treatment systems, diagnostic network optimization, bundled test procurement, and more rapid spread of innovation and best practices across disease programs. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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11. HIV-genetic diversity and drug resistance transmission clusters in Gondar, Northern Ethiopia, 2003-2013.
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Arimide, Dawit Assefa, Abebe, Almaz, Kebede, Yenew, Adugna, Fekadu, Tilahun, Tesfaye, Kassa, Desta, Assefa, Yibeltal, Balcha, Taye Tolera, Björkman, Per, and Medstrand, Patrik
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HIV infection genetics , *HIV infection transmission , *DRUG resistance in microorganisms , *VIRUS phylogeny - Abstract
Background: The HIV-1 epidemic in Ethiopia has been shown to be dominated by two phylogenetically distinct subtype C clades, the Ethiopian (C’-ET) and East African (C-EA) clades, however, little is known about the temporal dynamics of the HIV epidemic with respect to subtypes and distinct clades. Moreover, there is only limited information concerning transmission of HIV-1 drug resistance (TDR) in the country. Methods: A cross-sectional survey was conducted among young antiretroviral therapy (ART)-naïve individuals recently diagnosed with HIV infection, in Gondar, Ethiopia, 2011–2013 using the WHO recommended threshold survey. A total of 84 study participants with a median age of 22 years were enrolled. HIV-1 genotyping was performed and investigated for drug resistance in 67 individuals. Phylogenetic analyses were performed on all available HIV sequences obtained from Gondar (n = 301) which were used to define subtype C clades, temporal trends and local transmission clusters. Dating of transmission clusters was performed using BEAST. Result: Four of 67 individuals (6.0%) carried a HIV drug resistance mutation strain, all associated with non-nucleoside reverse transcriptase inhibitors (NNRTI). Strains of the C-EA clade were most prevalent as we found no evidence of temporal changes during this time period. However, strains of the C-SA clade, prevalent in Southern Africa, have been introduced in Ethiopia, and became more abundant during the study period. The oldest Gondar transmission clusters dated back to 1980 (C-EA), 1983 (C-SA) and 1990 (C’-ET) indicating the presence of strains of different subtype C clades at about the same time point in Gondar. Moreover, some of the larger clusters dated back to the 1980s but transmissions within clusters have been ongoing up till end of the study period. Besides being associated with more sequences and larger clusters, the C-EA clade sequences were also associated with clustering of HIVDR sequences. One cluster was associated with the G190A mutation and showed onward transmissions at high rate. Conclusion: TDR was detected in 6.0% of the sequenced samples and confirmed pervious reports that the two subtype C clades, C-EA and C’-ET, are common in Ethiopia. Moreover, the findings indicated an increased diversity in the epidemic as well as differences in transmission clusters sizes of the different clades and association with resistance mutations. These findings provide epidemiological insights not directly available using standard surveillance and may inform the adjustment of public health strategies in HIV prevention in Ethiopia. [ABSTRACT FROM AUTHOR]
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- 2018
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12. Africa CDC’s blueprint to enhance early warning surveillance: accelerating implementation of event-based surveillance in Africa.
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Mercy, Kyeng, Balajee, Arunmozhi, Numbere, Tamuno-Wari, Ngere, Philip, Simwaba, Davie, and Kebede, Yenew
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COVID-19 pandemic , *SITUATIONAL awareness , *WARNINGS , *LABOR union members , *BORDER crossing - Abstract
Event-based surveillance (EBS) is a core component of early warning surveillance. In 2018, Africa CDC developed the first edition of an event-based surveillance framework to guide African Union Member States in implementing EBS. Country experiences during the COVID-19 pandemic demonstrated the value of data from non-traditional sources for real time situational awareness; at the same time revealed the huge gaps in strengthening this arm of surveillance. Learning from these lessons and to begin to close those gaps, Africa CDC convened subject matter experts from African Union Member States and technical partners to develop the second edition of the EBS framework, 2023 and its training materials. The revised version includes additional sections such as, the multi-sectoral one health collaboration in EBS, monitoring and evaluation, cross border EBS, and use of event management systems. The current manuscript provides an overview of the 2023 Africa CDC EBS framework and highlights experience in two countries that have successfully employed this resource in their implementation efforts. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Preservice laboratory education strengthening enhances sustainable laboratory workforce in Ethiopia.
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Fonjungo, Peter N, Kebede, Yenew, Arneson, Wendy, Tefera, Derese, Yimer, Kedir, Kinde, Samuel, Alem, Meseret, Cheneke, Waqtola, Mitiku, Habtamu, Tadesse, Endale, Tsegaye, Aster, and Kenyon, Thomas
- Abstract
Background: There is a severe healthcare workforce shortage in sub Saharan Africa, which threatens achieving the Millennium Development Goals and attaining an AIDS-free generation. The strength of a healthcare system depends on the skills, competencies, values and availability of its workforce. A well-trained and competent laboratory technologist ensures accurate and reliable results for use in prevention, diagnosis, care and treatment of diseases.Methods: An assessment of existing preservice education of five medical laboratory schools, followed by remedial intervention and monitoring was conducted. The remedial interventions included 1) standardizing curriculum and implementation; 2) training faculty staff on pedagogical methods and quality management systems; 3) providing teaching materials; and 4) procuring equipment for teaching laboratories to provide practical skills to complement didactic education.Results: A total of 2,230 undergraduate students from the five universities benefitted from the standardized curriculum. University of Gondar accounted for 252 of 2,230 (11.3%) of the students, Addis Ababa University for 663 (29.7%), Jimma University for 649 (29.1%), Haramaya University for 429 (19.2%) and Hawassa University for 237 (10.6%) of the students. Together the universities graduated 388 and 312 laboratory technologists in 2010/2011 and 2011/2012 academic year, respectively. Practical hands-on training and experience with well-equipped laboratories enhanced and ensured skilled, confident and competent laboratory technologists upon graduation.Conclusions: Strengthening preservice laboratory education is feasible in resource-limited settings, and emphasizing its merits (ample local capacity, country ownership and sustainability) provides a valuable source of competent laboratory technologists to relieve an overstretched healthcare system. [ABSTRACT FROM AUTHOR]- Published
- 2013
- Full Text
- View/download PDF
14. Combatting Global Infectious Diseases: A Network Effect of Specimen Referral Systems.
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Fonjungo, Peter N., Alemnji, George A., Kebede, Yenew, Opio, Alex, Mwangi, Christina, Spira, Thomas J., Beard, R. Suzanne, and Nkengasong, John N.
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EBOLA virus disease , *PREVENTION of communicable diseases , *EPIDEMICS , *PUBLIC health , *COST effectiveness - Abstract
The recent Ebola virus outbreak in West Africa clearly demonstrated the critical role of laboratory systems and networks in responding to epidemics. Because of the huge challenges in establishing functional laboratories at all tiers of health systems in developing countries, strengthening specimen referral networks is critical. In this review article, we propose a platform strategy for developing specimen referral networks based on 2 models: centralized and decentralized laboratory specimen referral networks. These models have been shown to be effective in patient management in programs in resource-limited settings. Both models lead to reduced turnaround time and retain flexibility for integrating different specimen types. In Haiti, decentralized specimen referral systems resulted in a 182% increase in patients enrolling in human immunodeficiency virus treatment programs within 6 months. In Uganda, cost savings of up to 62% were observed with a centralized model. A platform strategy will create a network effect that will benefit multiple disease programs. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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15. Examining 7 years of implementing quality management systems in medical laboratories in sub‐Saharan Africa.
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Odhiambo, Collins O., van der Puije, Beatrice, Maina, Michael, Mekonen, Teferi, Diallo, Samba, Datema, Tjeerd, Loembe, Marguerite M., Kebede, Yenew, Ndlovu, Nqobile, and Ondoa, Pascale
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MEDICAL laboratories , *TOTAL quality management , *LABORATORY management , *MIDDLE-income countries , *GOVERNMENT laboratories - Abstract
Background: Achievement of ISO15189 accreditation demonstrates competency of a laboratory to conduct testing. Three programmes were developed to facilitate achievement of accreditation in low‐ and middle‐income countries: Strengthening Laboratory Management Towards Accreditation (SLMTA), Stepwise Laboratory Improvement Process Towards Accreditation (SLIPTA) and Laboratory Quality Stepwise Implementation (LQSI). Objective: To determine the level of accreditation and associated barriers and facilitators among medical laboratories in the WHO‐AFRO region by 2020. Methods: A desk review of SLIPTA and SLMTA databases was conducted to identify ISO15189‐accredited medical laboratories between January 2013 and December 2020. Data on access to the LQSI tool were extracted from the WHO database. Facility and country characteristics were collected for analysis as possible enablers of accreditation. The chi‐square test was used to analyse differences with level of significance set at <0.05. Results: A total of 668 laboratories achieved accreditation by 2020 representing a 75% increase from the number in 2013. Accredited laboratories were mainly in South Africa (n = 396; 55%) and Kenya (n = 106; 16%), two countries with national accreditation bodies. About 16.9% (n = 113) of the accredited laboratories were registered for the SLIPTA programme and 26.6% (n = 178) for SLMTA. Approximately 58,217 LQSI users were registered by December 2020. Countries with a higher UHC index for access to HIV care and treatment, higher WHO JEE scores for laboratory networks, a larger number of registered LQSI users, with national laboratory policy/strategic plans and PEPFAR‐priority countries were more likely to have an accredited laboratory. Of the 475 laboratories engaged in the SLIPTA programme, 154 attained ≥4 SLIPTA stars (ready to apply for accreditation) and 113 achieved ISO 15189 accreditation, with 96 enrolled into the SLMTA programme. Lower‐tier laboratories were less likely to achieve accreditation than higher‐tier laboratories (7.7% vs. 30%) (p < 0.001). The probability of achieving ISO 15189 accreditation (19%) was highest during the first 24 months after enrolment into the SLIPTA programme. Conclusion: To sustainably anchor quality improvement initiatives at facility level, national approaches including access to a national accreditation authority, adoption of national quality standards and regulatory frameworks are required. [ABSTRACT FROM AUTHOR]
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- 2023
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16. The first and second waves of the COVID-19 pandemic in Africa: a cross-sectional study.
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Salyer, Stephanie J, Maeda, Justin, Sembuche, Senga, Kebede, Yenew, Tshangela, Akhona, Moussif, Mohamed, Ihekweazu, Chikwe, Mayet, Natalie, Abate, Ebba, Ouma, Ahmed Ogwell, and Nkengasong, John
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COVID-19 pandemic , *COVID-19 , *CROSS-sectional method , *SITUATIONAL awareness , *TECHNICAL assistance - Abstract
Background: Although the first wave of the COVID-19 pandemic progressed more slowly in Africa than the rest of the world, by December, 2020, the second wave appeared to be much more aggressive with many more cases. To date, the pandemic situation in all 55 African Union (AU) Member States has not been comprehensively reviewed. We aimed to evaluate reported COVID-19 epidemiology data to better understand the pandemic's progression in Africa.Methods: We did a cross-sectional analysis between Feb 14 and Dec 31, 2020, using COVID-19 epidemiological, testing, and mitigation strategy data reported by AU Member States to assess trends and identify the response and mitigation efforts at the country, regional, and continent levels. We did descriptive analyses on the variables of interest including cumulative and weekly incidence rates, case fatality ratios (CFRs), tests per case ratios, growth rates, and public health and social measures in place.Findings: As of Dec 31, 2020, African countries had reported 2 763 421 COVID-19 cases and 65 602 deaths, accounting for 3·4% of the 82 312 150 cases and 3·6% of the 1 798 994 deaths reported globally. Nine of the 55 countries accounted for more than 82·6% (2 283 613) of reported cases. 18 countries reported CFRs greater than the global CFR (2·2%). 17 countries reported test per case ratios less than the recommended ten to 30 tests per case ratio range. At the peak of the first wave in Africa in July, 2020, the mean daily number of new cases was 18 273. As of Dec 31, 2020, 40 (73%) countries had experienced or were experiencing their second wave of cases with the continent reporting a mean of 23 790 daily new cases for epidemiological week 53. 48 (96%) of 50 Member States had five or more stringent public health and social measures in place by April 15, 2020, but this number had decreased to 36 (72%) as of Dec 31, 2020, despite an increase in cases in the preceding month.Interpretation: Our analysis showed that the African continent had a more severe second wave of the COVID-19 pandemic than the first, and highlights the importance of examining multiple epidemiological variables down to the regional and country levels over time. These country-specific and regional results informed the implementation of continent-wide initiatives and supported equitable distribution of supplies and technical assistance. Monitoring and analysis of these data over time are essential for continued situational awareness, especially as Member States attempt to balance controlling COVID-19 transmission with ensuring stable economies and livelihoods.Funding: None. [ABSTRACT FROM AUTHOR]- Published
- 2021
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17. Tackling the twin threats of pandemics and climate change: an agenda for action.
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Kaseya, Jean, Alimi, Yewande, Aluso, Aggrey, Habtemariam, Mahlet K., Crowell, Trevor A., Ngongo, Alain Ngashi, Kebede, Yenew, and Ndembi, Nicaise
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CLIMATE change , *VIBRIO cholerae , *EMERGING infectious diseases , *CLIMATE change & health , *EXTREME weather , *DEVELOPMENT banks - Abstract
The article discusses the urgent need to address the twin threats of pandemics and climate change. It emphasizes that ending fossil fuel dependence is crucial for a healthier world and future generations, as the direct health impact of climate change is already devastating. The interconnectedness of climate change and health, along with the increasing frequency and severity of infectious diseases, particularly zoonotic diseases, are highlighted. The article calls for a comprehensive, multi-sectoral approach, including investing in climate- and pandemic-resilient health systems and supply chains. It also emphasizes the importance of data generation, forward-looking emergency response strategies, and international financial reforms to address these challenges effectively. [Extracted from the article]
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- 2023
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18. Preparing national tiered laboratory systems and networks to advance diagnostics in Africa and meet the continent's health agenda: Insights into priority areas for improvement.
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Ondoa, Pascale, Ndlovu, Nqobile, Keita, Mah-Sere, Massinga-Loembe, Marguerite, Kebede, Yenew, Odhiambo, Collins, Mekonen, Teferi, Ashenafi, Aytenew, Kebede, Amha, and Nkengasong, John
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PUBLIC health surveillance , *GOVERNMENT laboratories , *COVID-19 - Abstract
Access to diagnostics remains sub-optimal in Africa due to limited human, financial and technical resources that affect various components of the health system.[1],[2] Additionally, the lack of standardised systems for evaluation and registration of diagnostics[3] cripples the introduction of better technologies, representing missed opportunities to address healthcare challenges. In addition to 70% of patients not being notified, a rifampicin susceptibility test was available to less than 10% of patients in 23 of 47 countries and second-line resistance testing was available only in 60% of the countries on the continent.[7] The picture is equally worrisome for diseases that are poorly or not supported through dedicated programmes. Assisting countries to define tier-specific testing packages that address the needs of clinical diagnostics and disease surveillance is another important intervention with the potential to guide the introduction of diagnostics at the levels where they are most needed and cost-effective. [Extracted from the article]
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- 2020
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19. Role of public-private partnerships in achieving UNAIDS HIV treatment targets.
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Shrivastava, Ritu, Fonjungo, Peter N., Kebede, Yenew, Bhimaraj, Rajendra, Zavahir, Shabnam, Mwangi, Christina, Gadde, Renuka, Alexander, Heather, Riley, Patricia L., Kim, Andrea, and Nkengasong, John N.
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GOVERNMENT agencies , *GOAL (Psychology) , *HIV , *HIV infections , *LABORATORIES , *MEDICAL care , *SYSTEMATIC reviews , *VIRAL load , *INSTITUTIONAL cooperation , *EARLY diagnosis - Abstract
Background: Despite progress towards achieving UNAIDS 90-90-90 goals, barriers persist in laboratory systems in sub-Saharan Africa (SSA) restricting scale up of early infant diagnosis (EID) and viral load (VL) test monitoring of patients on antiretroviral therapy. If these facilities and system challenges persist, they may undermine recorded gains and appropriate management of patients. The aim of this review is to identify Public Private Partnerships (PPP) in SSA that have resolved systemic barriers within the VL and EID treatment cascade and demonstrated impact in the scale up of VL and EID.Methods: We queried five HIV and TB laboratory databases from 2007 to 2017 for studies related to laboratory system strengthening and PPP. We identified, screened and included PPPs that demonstrated evidence in alleviating known system level barriers to scale up national VL and EID testing programs. PPPs that improved associated systems from the point of viral load test request to the use of the test result for patient management were deemed eligible.Results: We identified six PPPs collaborations with multiple activities in select countries that are contributing to address challenges to scale up national viral load programs. One of the six PPPs reached 14.5 million patients in remote communities and transported up to 400,000 specimens in a year. Another PPP enabled an unprecedented 94% of specimens to reach national laboratory through improved sample referral network and enabled a cost savings of 62%. Also PPPs reduced cost of reagents and enabled 300,000 tested infants to be enrolled in care as well as reduced turnaround time of reporting results by 50%.Conclusions: Our review identified the benefits, enabling factors, and associated challenges for public and private sectors to engage in PPPs. PPP contributions to laboratory systems strengthening are a model and present opportunities that can be leveraged to strengthen systems to achieve the UNAIDS 90-90-90 treatment targets for HIV/AIDS. Despite growing emphasis on engaging the private sector as a critical partner to address global disease burden, PPPs that specifically strengthen laboratories, the cornerstone of public health programs, remain largely untapped. [ABSTRACT FROM AUTHOR]- Published
- 2019
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20. Laboratory-based performance evaluation of PIMA CD4 + T-lymphocyte count point-of-care by lay-counselors in Kenya.
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Zeh, Clement, Rose, Charles E., Inzaule, Seth, Desai, Mitesh A., Otieno, Fredrick, Humwa, Felix, Akoth, Benta, Omolo, Paul, Chen, Robert T., Kebede, Yenew, and Samandari, Taraz
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CD4 lymphocyte count , *POINT-of-care testing , *HIV-positive persons , *SENSITIVITY & specificity (Statistics) , *LABORATORY technicians - Abstract
Background CD4 + T-lymphocyte count testing at the point-of-care (POC) may improve linkage to care of persons diagnosed with HIV-1 infection, but the accuracy of POC devices when operated by lay-counselors in the era of task-shifting is unknown. We examined the accuracy of Alere's Pima™ POC device on both capillary and venous blood when performed by lay-counselors and laboratory technicians. Methods In Phase I, we compared the perfomance of POC against FACSCalibur™ for 280 venous specimens by laboratory technicians. In Phase II we compared POC performance by lay-counselors versus laboratory technicians using 147 paired capillary and venous specimens, and compared these to FACSCalibur™. Statistical analyses included Bland-Altman analyses, concordance correlation coefficient, sensitivity, and specificity at treatment eligibility thresholds of 200, 350, and 500 cells/μl. Results Phase I: POC sensitivity and specificity were 93.0% and 84.1% at 500 cells/μl, respectively. Phase II: Good agreement was observed for venous POC results from both lay-counselors (concordance correlation coefficient (CCC) = 0.873, bias − 86.4 cells/μl) and laboratory technicians (CCC = 0.920, bias − 65.7 cells/μl). Capillary POC had good correlation: lay-counselors (CCC = 0.902, bias − 71.2 cells/μl), laboratory technicians (CCC = 0.918, bias − 63.0 cells/μl). Misclassification at the 500 cells/μl threshold for venous blood was 13.6% and 10.2% for lay-counselors and laboratory technicians and 12.2% for capillary blood in both groups. POC tended to under-classify the CD4 values with increasingly negative bias at higher CD4 values. Conclusions Pima™ results were comparable to FACSCalibur™ for both venous and capillary specimens when operated by lay-counselors. POC CD4 testing has the potential to improve linkage to HIV care without burdening laboratory technicians in resource-limited settings. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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21. Laboratory system strengthening and quality improvement in Ethiopia.
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Hiwotu, Tilahun M., Ayana, Gonfa, Mulugeta, Achamyeleh, Kassa, Getachew B., Kebede, Yenew, Fonjungo, Peter F., Tibesso, Gudeta, Desale, Adino, Kebede, Adisu, Kassa, Wondwossen, Mekonnen, Tesfaye, Yao, Katy, Luman, Elizabeth T., Kebede, Amha, and Linde, Mary K.
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LABORATORY management , *QUALITY assurance , *HOSPITAL medical staff , *MEDICAL laboratories - Abstract
Background: In 2010, a National Laboratory Strategic Plan was set forth in Ethiopia to strengthen laboratory quality systems and set the stage for laboratory accreditation. As a result, the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme was initiated in 45 Ethiopian laboratories. Objectives: This article discusses the implementation of the programme, the findings from the evaluation process and key challenges. Methods: The 45 laboratories were divided into two consecutive cohorts and staff from each laboratory participated in SLMTA training and improvement projects. The average amount of supportive supervision conducted in the laboratories was 68 hours for cohort I and two hours for cohort II. Baseline and exit audits were conducted in 44 of the laboratories and percent compliance was determined using a checklist with scores divided into zero- to five-star rating levels. Results: Improvements, ranging from < 1 to 51 percentage points, were noted in 42 laboratories, whilst decreases were recorded in two. The average scores at the baseline and exit audits were 40% and 58% for cohort I (p < 0.01); and 42% and 53% for cohort II (p < 0.01), respectively. The p-value for difference between cohorts was 0.07. At the exit audit, 61% of the first and 48% of the second cohort laboratories achieved an increase in star rating. Poor awareness, lack of harmonisation with other facility activities and the absence of a quality manual were challenges identified. Conclusion: Improvements resulting from SLMTA implementation are encouraging. Continuous advocacy at all levels of the health system is needed to ensure involvement of stakeholders and integration with other improvement initiatives and routine activities. [ABSTRACT FROM AUTHOR]
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- 2014
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22. Field expansion of DNA polymerase chain reaction for early infant diagnosis of HIV-1: The Ethiopian experience.
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Fonjungo, Peter N., Girma, Mulu, Melaku, Zenebe, Mekonen, Teferi, Tanuri, Amilcar, Hailegiorgis, Bereket, Tegbaru, Belete, Mengistu, Yohannes, Ashenafi, Aytenew, Mamo, Wubshet, Abreha, Tesfay, Tibesso, Gudetta, Ramos, Artur, Ayana, Gonfa, Freeman, Richard, Nkengasong, John N., Zewdu, Solomon, Kebede, Yenew, Abebe, Almaz, and Kenyon, Thomas A.
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DNA polymerases , *POLYMERASE chain reaction , *HIV-positive children , *EARLY diagnosis , *DISEASE progression , *INFANT mortality statistics - Abstract
Background: Early diagnosis of infants infected with HIV (EID) and early initiation of treatment significantly reduces the rate of disease progression and mortality. One of the challenges to identification of HIV-1-infected infants is availability and/or access to quality molecular laboratory facilities which perform molecular virologic assays suitable for accurate identification of the HIV status of infants. Method: We conducted a joint site assessment and designed laboratories for the expansion of DNA polymerase chain reaction (PCR) testing based on dried blood spot (DBS) for EID in six regions of Ethiopia. Training of appropriate laboratory technologists and development of required documentation including standard operating procedures (SOPs) was carried out. The impact of the expansion of EID laboratories was assessed by the number of tests performed as well as the turn-around time. Results: DNA PCR for EID was introduced in 2008 in six regions. From April 2006 to April 2008, a total of 2848 infants had been tested centrally at the Ethiopian Health and Nutrition Research Institute (EHNRI) in Addis Ababa, and which was then the only laboratory with the capability to perform EID; 546 (19.2%) of the samples were positive. By November 2010, EHNRI and the six laboratories had tested an additional 16 985 HIV-exposed infants, of which 1915 (11.3%) were positive. The median turn-around time for test results was 14 days (range 14-21 days). Conclusion: Expansion of HIV DNA PCR testing facilities that can provide quality and reliable results is feasible in resource-limited settings. Regular supervision and monitoring for quality assurance of these laboratories is essential to maintain accuracy of testing. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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