• Clinical Assistant Professor, Global Health
  • Senior Research Scientist, Kenya Medical Research Institute, Nairobi, Kenya

Box 19865-00202

Phone Number: 
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Dr.Chohan received her PhD (Virology) from University of Washington and MSc from London School of Hygiene & Tropical Medicine, UK. She has worked with HIV/STI research since 1993, serving as Lab Manager for collaborative research projects with Universities of Washington/Nairobi in Mombasa, Kenya. After her Graduate studies from University of Washington under the mentorship of Dr.Overbaugh, she returned to Nairobi, Kenya in 2007, where she established molecular virology research laboratory. Her broad goals are to establish and implement quality research on HIV transmission studies to improve health outcomes in Kenya and build a resource of well-trained and qualified scientists in the country. Currently, Dr.Chohan serves as Laboratory Director for Universities of Nairobi/Washington collaborative research studies in Nairobi and conducts funded research studies as lead and co-investigator for NIH and local (Kenya) funded studies. She holds position of Senior Research Scientist position at KEMRI and visiting scientist at University of Nairobi. She lectures and mentors students and junior scientists. Her research interests are focused on HIV transmission and drug resistance studies.

  • PhD (University of Washington)
  • MSc (London School of Hygiene & Tropical Medicine (UK))
Country Affiliations 
  • Gujarati
  • Kiswahili
Health Topics 
  • Child and Adolescent Health (incl. Pediatrics)
  • COVID-19
  • HIV Transmission
  • HPV
  • Laboratory Strengthening
  • Prevention
  • STDs (other than HIV)
  • Viruses

1. Chohan B, Tapia K, Benki-Nugent S, Khasimwa B, Nga’yo M, Maleche-Obimbo E, Wamalwa D, Overbaugh J, John-Stewart G. Nevirapine resistance in previously NVP-unexposed HIV-1 infected infants initiating early antiretroviral therapy. AIDS Res Hum Retroviruses. 2015;31(8):783-91. PMCID: PMC4533021.

2. Chohan BH, Tapia K, Merkel, M, Kariuki A, Khasimwa B, Olago A, Gichuhi R, Obimbo EM, and Wamalwa D. Pooled HIV-1 RNA viral load testing for detection of antiretroviral treatment failure in Kenyan children. J Acquir Immune Defic Syndr. 2013;63(3):e87-93. doi: 10.1097/QAI. 0b013e318292f9cd. PMCID: PMC3767042.

3. Piantadosi A*, Chohan B*, Chohan V, McClelland S, Overbaugh J. Chronic HIV-1 infection Fails to Protect against Superinfection. PloS Pathogens. 2007;3(11):e177. (*co-first authors). PMCID: PMC2077901.

4. Chohan B, Lang D, Sagar M, Korber B, Lavreys L, Richardson B, Overbaugh J. Selection for Human Immunodeficiency Virus Type 1 Envelope Glycosylation Variants with Shorter V1-V2 loops sequences occurs during transmission of Certain Genetic Subtypes and May Impact Viral RNA Levels. J Virol. 2005 May;79(10):6528-31. PMCID: PMC1091724.

5. Baeten J.Chohan B, Lavreys L, Chohan, V R. McClelland S, Certain L, Mandaliya K, Jaoko w, Overbaugh J. HIV-1 subtype D infection is associated with faster disease progression compared with subtype A in spite of similar HIV-1 plasma viral loads. J Infect Dis. 2007 Apr 15;195(8):1177-80. PMID: 17357054.