Professor Etyang underwent his undergraduate and postgraduate medical education at the University of Nairobi in Kenya. He joined KWTRP in 2010 to set up ward based surveillance for invasive pneumococcal disease at the Kilifi County Hospital. He subsequently did an MSc and PhD in Epidemiology at the London School of Hygiene and Tropical Medicine, exploring potential links between infectious and non-communicable diseases. Professor Etyang’s studies are providing much needed local data for control of high burden infectious and non-communicable diseases. His work spans a wide range of study designs and settings, including clinic and field based observational studies as well as clinical trials in Kenya and other low and middle income countries.

Current Work

Prof. Etyang is the current head of the Department of Epidemiology and Demography. His main areas of interest are: • Hypertension: accuracy of blood pressure measurement; risk stratification for cardiovascular disease; links between malaria and hypertension; IHCoR Africa-Improving Hypertension Control in Rural sub-Saharan Africa • Clinical Trials- REALITY (Reduction of Early Mortality in HIV-infected adults and children starting antiretroviral therapy); SONIA (Steroids for pneuomonia in adults in Kenya); COPCOV (Hydroxychloroquine for prevention of COVID-19); COVID-19 vaccine trials • Serosurveillance for antibodies to SARS-CoV-2 in Health Care Workers in Kenya and COVID-19 effectiveness studies Other Roles; Advisory/technical working groups; Kilifi NCD Working Group, Lancet Commission on Hypertension, NIHR SPARC awards selection committee Reviewer roles: Lancet Global Health, Eclinical Medicine, Heart, European Heart Journal, F1000, PLOS, European Journal of Preventive Cardiology


Ministry of Health, Kenya Kenya Cardiac Society MRC Unit, the Gambia London School of Hygiene and Tropical Medicine University of Oxford

Project Research

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Where do those data go? Reuse of screening results from clinical trials to estimate population prevalence of HBV infection in adults in Kilifi, Kenya.
Downs, L. O., Campbell, C., Abouyannis, M., Otiende, M., Kapulu, M., Obiero, C. W., Hamaluba, M., Ngetsa, C., Andersson, M. I., Githinji, G., Warimwe, G., Baisley, K., Scott, J. A. G., Matthews, P. C., Etyang, A.
J Virus Erad, (2023). 9:100355

Impact of COVID-19 on mortality in coastal Kenya: a longitudinal open cohort study.
Otiende, M., Nyaguara, A., Bottomley, C., Walumbe, D., Mochamah, G., Amadi, D., Nyundo, C., Kagucia, E. W., Etyang, A. O., Adetifa, I. M. O., Brand, S. P. C., Maitha, E., Chondo, E., Nzomo, E., Aman, R., Mwangangi, M., Amoth, P., Kasera, K., Ng'ang'a, W., Barasa, E., Tsofa, B., Mwangangi, J., Bejon, P., Agweyu, A., Williams, T. N., Scott, J. A. G.
Nat Commun, (2023). 14:6879

SARS-CoV-2 seroprevalence and implications for population immunity: Evidence from two Health and Demographic Surveillance System sites in Kenya, February-December 2022.
Kagucia, E. W., Ziraba, A. K., Nyagwange, J., Kutima, B., Kimani, M., Akech, D., Ng'oda, M., Sigilai, A., Mugo, D., Karanja, H., Gitonga, J., Karani, A., Toroitich, M., Karia, B., Otiende, M., Njeri, A., Aman, R., Amoth, P., Mwangangi, M., Kasera, K., Ng'ang'a, W., Voller, S., Ochola-Oyier, L. I., Bottomley, C., Nyaguara, A., Munywoki, P. K., Bigogo, G., Maitha, E., Uyoga, S., Gallagher, K. E., Etyang, A. O., Barasa, E., Mwangangi, J., Bejon, P., Adetifa, I. M. O., Warimwe, G. M., Scott, J. A. G., Agweyu, A.
Influenza Other Respir Viruses, (2023). 17:e13173

Examining the responsiveness of the National Health Insurance Fund to people living with hypertension and diabetes in Kenya: a qualitative study.
Oyando, R., Were, V., Willis, R., Koros, H., Kamano, J. H., Naanyu, V., Etyang, A., Mugo, R., Murphy, A., Nolte, E., Perel, P., Barasa, E.
BMJ Open, (2023). 13:e069330

Translating Ethics into Practice: Providing Long-Term Cardiometabolic and Cardiovascular Disease Care for Research Participants in Africa.
Cichowitz, C., Kisigo, G., Ruselu, G., Wajanga, B., Desderius, B., Etyang, A. O., Kapiga, S., Peck, R.
Glob Heart, (2023). 18:34

Evaluating the effectiveness of the National Health Insurance Fund in providing financial protection to households with hypertension and diabetes patients in Kenya.
Oyando, R., Were, V., Koros, H., Mugo, R., Kamano, J., Etyang, A., Murphy, A., Hanson, K., Perel, P., Barasa, E.
Int J Equity Health, (2023). 22:107

Recurrent spontaneous Escherichia coli meningitis in an adult: a case report.
Amulele, A. V., Ong'ayo, G., Arara, A. M., Machanja, E. W., Etyang, A., Aliyan, N. A., Wareham, D. W., Berkley, J. A., Gordon, N. C.
JAC Antimicrob Resist, (2023). 5:dlad029

A systematic review of Hepatitis B virus (HBV) prevalence and genotypes in Kenya: Data to inform clinical care and health policy.
Downs, L. O., Campbell, C., Yonga, P., Githinji, G., Ansari, M. A., Matthews, P. C., Etyang, A. O.
PLOS Glob Public Health, (2023). 3:e0001165

SARS-CoV-2 seroprevalence in three Kenyan health and demographic surveillance sites, December 2020-May 2021.
Etyang, A. O., Adetifa, I., Omore, R., Misore, T., Ziraba, A. K., Ng'oda, M. A., Gitau, E., Gitonga, J., Mugo, D., Kutima, B., Karanja, H., Toroitich, M., Nyagwange, J., Tuju, J., Wanjiku, P., Aman, R., Amoth, P., Mwangangi, M., Kasera, K., Ng'ang'a, W., Akech, D., Sigilai, A., Karia, B., Karani, A., Voller, S., Agoti, C. N., Ochola-Oyier, L. I., Otiende, M., Bottomley, C., Nyaguara, A., Uyoga, S., Gallagher, K., Kagucia, E. W., Onyango, D., Tsofa, B., Mwangangi, J., Maitha, E., Barasa, E., Bejon, P., Warimwe, G. M., Scott, J. A. G., Agweyu, A.
PLOS Glob Public Health, (2022). 2:e0000883

Seroprevalence, correlates and kinetics of SARS-CoV-2 nucleocapsid IgG antibody in healthcare workers and nonclinical staff at a tertiary hospital: A prevaccine census study.
Maina, D., Omuse, G., Ong'ete, G., Mugaine, P., Sayed, S., Moloo, Z., Shah, R., Etyang, A., Adam, R.
PLoS One, (2022). 17:e0267619