Infectious Diseases and HIV Faculty

Full-Time Faculty

Michael H Chung.jpgMichael H. Chung, MD, MPH  
Infectious Diseases / HIV Specialist

Prof. Michael Chung received his MD from the University of Chicago Pritzker School of Medicine and a Master's in Public Health degree from the Harvard School of Public Health, USA. He trained in Internal Medicine at the Beth Israel Deaconess Medical Center and in Infectious Diseases at the University of Washington, USA, and is certified with the American Board of Internal Medicine in both specialties.

Prof. Chung helped establish the Coptic Hope Center for Infectious Diseases in Nairobi which has enrolled and treated over 20,000 HIV-infected patients since 2004. He is the lead investigator of many clinical trials in Kenya and has published research in breast milk transmission of HIV, adherence to antiretroviral medications, and HIV care and implementation in Kenya.

Currently, Prof. Chung is leading randomized trials in cervical cancer screening and treatment among HIV-infected women and using an inexpensive oligonucleotide ligation assay (OLA) to detect pre-treatment drug resistance (PDR) and guide antiretroviral therapy.


  1. Gupta RK, Gregson J, Parkin N, Haile-Selassie H, Tanuri A, Forero LA, Kaleebu P, Watera C, Aghokeng A, Mutenda N, Dzangare J, Hone S, Hang ZZ, Garcia J,  Garcia Z, Marchorro P, Beteta E, Roman M, Giron A, Hamers R, Inzauke S, Frenkel LM, Chung MH, de Oliveira T, Pillay D, Naidoo K, Kharsany A, Kugathasan R, Cutino T, Hunt G, Rios SA, Jordan MR, Bertagnolio S. 2017. HIV-1 Drug Resistance prior to Initiation or Re-Initiation of First-Line Antiretroviral Therapy in Low- and Middle-Income Countries – a Meta-Regression Analysis. Lancet Infectious Diseases. [original work]. In Press

  2. Greene SA, McGrath CJ, Lehman DA, Marson KG, Trinh R, Yatich N, Nyongesa-Malava E, Kiptinness C, Richardson BA, John-Stewart GC, De Vuyst D, Sakr SR, Mugo NR, Chung MH. Increased Cervical HIV RNA Shedding Among HIV-Infected Women Randomized to Loop Electrosurgical Excision Procedure (LEEP) compared to Cryotherapy for Cervical Intraepithelial Neoplasia 2/3. 2017. Clinical Infectious Diseases. [original work]. In Press

  3. Silverman RA, Beck IA, Kiptinness C, Levine M, McGrath CJ, Bii S, Richardson BA, John-Stewart GC, Chohan B, Sakr SR, Kiarie JN, Frenkel LM, Chung MH. Prevalence of Pre-antiretroviral Treatment Drug Resistance by Gender, Age, and Other Factors in HIV-infected Individuals Initiating Therapy in Kenya, 2013-2014. 2017. Journal of Infectious Diseases. [original work]. In Press

Michael H Chung.jpg

Associate Professor 

Prof. Reena Shah, the Section Head of Infectious Diseases, received her MBBS degree from the University of Southampton in the UK and both her Master’s degree and Diploma in Infectious Diseases from the University of London, UK. She also holds a Diploma in Tropical Medicine and Infectious Diseases from the London School of Tropical Medicine and Hygiene. Prof. Shah has held several positions including Program Director of the Internal Medicine Residency Program at the university and is currently the Director for the Infectious Diseases Fellowship Program. Her scholarly area of interest is Infectious Disease with a specific focus on HIV/AIDS, TB, malari, and Hepatitis B. In Kenya, these diseases are of prime public health importance and there is tremendous need for applied research, development of improved diagnostic and therapeutic strategies, development of guidelines and contribution to national policy.


  1. Shah R, Nabiswa H, Okinda N, Revathi G, Hawken M, Nelson M. Prevalence of HLA-B*5701 in a Kenyan Population with HIV Infection. YJINF3981. Journal of Infection Corresponding. 4-OCT-2017 DOI information: 10.1016/j.jinf.2017.09.007

  2. Juma FO, Yonga G, Waweru P, Revathi G, Nelson M, Shah R. The Diagnostic Accuracy of Determine™ TB LAM Antigen in Detection of Extra Pulmonary Tuberculosis (EPTB). J Infect. 2017 Dec;75(6):583-586. doi: 10.1016/j.jinf.2017.08.011. Epub 2017 Sep 4.

  3. Gitau SN, Vinayak S, Silaba M, Adam R, Shah R. High Prevalence of Liver Fibrosis in Patients with Human Immunodeficiency Virus Monoinfection and Human Immunodeficiency Virus Hepatitis ‑ B Co‑infection as Assessed by Shear Wave Elastography: Journal of Clinical Imaging Science 2016;6:1-6.

Rod Adam MD.jpg Rod Adam MD

Prof. Adam received his MD degree at the University of Illinois, USA in 1981 and his BA in Mathematics, Chemistry and Biology at Trinity International University, USA in 1976. He completed his training in Internal Medicine and Infectious Diseases as well as laboratory training in Molecular Parasitology before joining the University of Arizona College of Medicine faculty.

His current research interests include hospital-acquired infections and their prevention. Prof. Adam is interested in the correlation of the intestinal microbiota with a variety of adverse outcomes.


  1. Reid G, Nduti N, Sybesma W, Kort R, Kollmann TR, Adam, RD, Boga H., Brown EM, Einerhand A, El-Nezami H. Harnessing microbiome and probiotic research in sub-Saharan Africa: recommendations from an African workshop. Microbiome, 2014, 2:12.

  2. Kibet, E., Moloo, Z., Ojwang, P.J., Sayed, S., Mbuthia, A., and Adam, R.D. (2014). Measurement of Improvement Achieved by Participation in International Laboratory Accreditation in Sub-Saharan Africa: The Aga Khan University Hospital Nairobi Experience. Am J Clin Pathol 141, 188-195.

  3. Maina D, Revathi G, Omuse G, Adam RD. Spectrum of microbial diseases and resistance patterns at a private teaching hospital in Kenya: Implications for clinical practice. PLOS One, 2016, DOI: 10.1371/journal.pone.0147659.

Dr. Felix Riunga, 
MBChB, MMed.

Dr. Riunga earned his medical degree from the University of Nairobi in 2006, and his Masters in Medicine from the Aga Khan University, Nairobi in 2014.  He later pursued specialty training in Infectious Diseases at the Aga Khan University, Nairobi. Currently Dr. Riunga serves as an Infectious Diseases consultant at the Aga Khan University Hospital, Nairobi.  

Dr. Riunga is the recipient of the Gandhi Smarak Nidhi Trustee Fund Award, Chandaria and Kamala Memorial Awards from the University of Nairobi. In addition to teaching medical students and residents, Dr. Riunga’s interests include ICU-related infectious diseases and HIV associated cryptococcal meningitis.  He is an active member of the HIV Clinicians Society of Kenya.​​​


Part-Time Faculty

Mark Philip Hawken, MBChB, MSc, FRACP
Senior Lecturer