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. Chanda, C, Kibengo, F, Mutua, M, Ogada, F, Muturi-Kioi, V, Akis Yildirim, BM et al.. Safety and broad immunogenicity of HIVconsvX conserved mosaic candidate T-cell vaccines vectored by ChAdOx1 and MVA in HIV-CORE 006: a double-blind, randomised, placebo-controlled phase 1 trial in healthy adults living without HIV-1 in eastern and southern Africa. Lancet Microbe. 2025; :101041. doi: 10.1016/j.lanmic.2024.101041. PubMed PMID:40388952 .
  2. Oketch, DC, 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. Res Sq. 2025; :. doi: 10.21203/rs.3.rs-5842512/v1. PubMed PMID:40321758 PubMed Central PMC12047972.
  3. Sabo, MC, Mustafa, S, Saha, A, Oyaro, B, Fiedler, TL, Krueger, M et al.. Bacterial vaginosis is associated with transcriptomic changes but not higher concentrations of cervical leukocytes in a study of women at high risk for HIV acquisition. J Infect Dis. 2025; :. doi: 10.1093/infdis/jiaf049. PubMed PMID:39874304 .
  4. Karani, A, Ombok, C, Situma, S, Breiman, R, Mureithi, M, Jaoko, W et al.. Low-Level Zoonotic Transmission of Clade C MERS-CoV in Africa: Insights from Scoping Review and Cohort Studies in Hospital and Community Settings. Viruses. 2025;17 (1):. doi: 10.3390/v17010125. PubMed PMID:39861917 PubMed Central PMC11768526.
  5. McClelland, RS, Lokken, EM, Kinuthia, J, Srinivasan, S, Richardson, BA, Jaoko, W et al.. A prospective cohort study examining the association between the periconceptual vaginal microbiota and first-trimester miscarriage in Kenyan women. Paediatr Perinat Epidemiol. 2024;38 (7):599-611. doi: 10.1111/ppe.13099. PubMed PMID:38949435 PubMed Central PMC11590749.
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