Walter Jaoko, MBChB, PhD, PGD

Professor of Medical Microbiology and Tropical Medicine, University of Nairobi

Walter Jaoko, MBChB, PhD, PGD is a professor of medical microbiology and tropical medicine, Director of KAVI, and former Chair of the Department of Medical Microbiology at the University of Nairobi. He has thirty years of experience in teaching and research in various aspects of infectious disease transmission, pathology, treatment, prevention, and control. He has published 166 articles in peer-reviewed scientific journals. He also has 16 years of management experience as Deputy Director of an Institute and Chairman of Department at the University of Nairobi, and 10 years of experience in governance as a member and chair of several Boards. In addition, he has a keen interest in health research ethics and received advanced training in research ethics through a Fogarty Grant of the NIH leading to a Postgraduate Diploma in Health Research Ethics from Stellenbosch University. He is very personate about clinical research and ethical standards in the conduct of health research in developing countries and has trained research ethics committee members in Kenya on principles of bioethics, and on international guidelines and regulations of research ethics.

Publications

  1. Oketch, DCO, Muriuki, SW, Omia, D, Osindi, B, Njoroge, R, Kessie, JA et al.. Integrating Ethnography and Structural Equation Modelling to Assess Brucellosis Knowledge, Attitude, and Practices among Pastoralist Communities in Kenya. medRxiv. 2025; :. doi: 10.1101/2025.10.17.25338227. PubMed PMID:41282713 PubMed Central PMC12633119.
  2. Stuart, R, Sergio, L, Effy, V, George, C, Tiwonge, M, Nezerith, C et al.. Private commercial companies sharing health-relevant consumer data with health researchers in sub-Saharan Africa: an ethical exploration. Policy Stud. 2024; :. doi: 10.1080/01442872.2024.2403506. PubMed PMID:40857480 PubMed Central PMC12356098.
  3. Omutoko, L, Chingarande, GR, Botes, M, Moyana, F, Singh, S, Jaoko, W et al.. Understanding and processing informed consent during data-intensive health research in sub-Saharan Africa: challenges and opportunities from a multilingual perspective. Res Ethics. 2025;21 (3):503-518. doi: 10.1177/17470161241274809. PubMed PMID:40809784 PubMed Central PMC12346138.
  4. Oketch, DCO, Njoroge, R, Ngage, TO, Omar, AA, Magarre, A, Pasha, R et al.. Cultural and behavioral drivers of zoonotic disease transmission and persistence among diverse pastoralist communities in East Africa. One Health Outlook. 2025;7 (1):36. doi: 10.1186/s42522-025-00153-9. PubMed PMID:40660371 PubMed Central PMC12257696.
  5. Pearson, RA, Krish, KN, Whatney, WE, Jaoko, W, Mandaliya, K, Overbaugh, J et al.. Single-Cell Transcriptomics Reveals Depletion and Dysregulation of Mycobacterium tuberculosis-Specific Th1 and Th17 Cells Early After Acquisition of Human Immunodeficiency Virus. J Infect Dis. 2025;232 (4):835-846. doi: 10.1093/infdis/jiaf354. PubMed PMID:40605619 PubMed Central PMC12526950.
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