Grace John Stewart

Grace John-Stewart

Professor, Medicine
Professor, Epidemiology
Professor, Global Health
Professor, Pediatrics


Associate Director, Administrative Core

Dr. John-Stewart was trained as an internist and pediatrician prior to infectious diseases, and received a PhD in Epidemiology.  Her research is focused on international HIV-1 studies, primarily based in Kenya. These include studies of transmission, prevention, clinical epidemiology,  clinical trials, and molecular epidemiology.  Her interests include mother-to-child transmission of HIV-1, pediatric HIV-1 and co-infections, HIV-1 acquisition and pathogenesis, treatment and delivery of HIV-1 treatment and prevention services. Dr. John-Stewart is also the Director of the University of Washington Global Center for Integrated Health of Women, Adolescents and Children (Global WACh).

Research Interests

HIV-1 transmission, mother-to-child transmission of HIV-1, treatment of HIV-1


PhD, University of Washington
MPH, University of Washington
MD, University of Michigan
BS, University of MIchigan

Selected Publications

Nduati R, John G, Mbori-Ngacha D, Richardson B, Overbaugh J, Mwatha A, Ndinya-Achola J, Bwayo J, Onyango FE, Hughes J, Kreiss J. Effect of breastfeeding and formula feeding on transmission of HIV-1: A randomized clinical trial. JAMA 2000;283:1167-1174. 

John G, Nduati RW, Mbori-Ngacha DA, Richardson BA, Panteleeff DD, Mwatha A, Overbaugh J, Bwayo J, Ndinya-Achola JO, Kreiss JK. Correlates of mother-to-child transmission of HIV-1 in the Kenyan breastfeeding clinical trial. J Infect Dis 2001;183:206-12.

Nduati R, Richardson BA, John G, Mbori-Ngacha D, Overbaugh J, Mwatha A,Ndinya-Achola J, Bwayo J, Kreiss J. Effect of breastfeeding on maternal mortality among HIV-1 infected women. Lancet 2001;357:1651-55.

Chung M, Kiarie J, Richardson B, Lehman D, Overbaugh J, John-Stewart G. Breast milk HIV-1 Suppression and Decreased Transmission: a randomized trial comparing HIVNET 012 nevirapine vs. short-course zidovudine. AIDS 2005; 19:1415-1422.

Walson JL, Otieno PA, Mbuchi M, Richardson B, Lohman-Payne B, Macharia SW, Overbaugh J, Berkley J, Sanders E, Chung M, John-Stewart GC. Albendazole treatment in HIV-1 and helminth co-infected adults: A randomized, double blind, placebo-controlled trial. AIDS 2008; 22(13):1601-1609.


Faculty pages:  Global Health, Medicine, Epidemiology, Kenya Research Program


University of Washington
325 9th Avenue
Box 359909
Seattle, WA 98104
gjohn at
Office: 206-543-4278
Fax: 206-543-4818