Faculty

Grace C. John-Stewart

Professor, Epidemiology
Professor, Global Health
Professor, Medicine - Allergy and Infectious Dis.
Professor, Pediatrics
Director, Global Center for the Integrated Health of Women, Adolescents, & Children, Global Health

206-543-4278

Education

MD Medicine, University of Michigan, 1987
MPH Epidemiology, University of Washington, 1995
PhD Epidemiology, University of Washington, 2000

Contact

206-543-4278

Global Center for Integrated Health of Women, Adolescents and Children (Global WACh)
325 9th Avenue, Box 359909
Seattle, WA 98104

Research Areas

Research Interests

Dr. Grace John-Stewart is a Professor of Global Health, Medicine, Epidemiology, and Pediatrics at the University of Washington. Her interests include prevention of mother-to-child transmission of HIV (PMTCT), improving outcomes for children with HIV, and addressing relevant co-infections that affect women and children with HIV (including TB, pneumonia, diarrhea, CMV). Dr. John-Stewart has published over 275 peer-reviewed articles. Her research is based in Kenya and includes molecular epidemiologic studies, clinical trials, implementation science studies, and program evaluations focused on HIV and maternal child health. She received the Elizabeth Glaser Scientist Award for research on mother-to-child transmission of HIV. Dr. John-Stewart has mentored numerous trainees, received a K24 Mentorship Award, and received a UW School of Medicine mentorship award. She is the Director of the UW CFAR International Core and the UW Global Center for Integrated Health of Women, Adolescents and Children (Global WACh).

Recent Publications (PubMed)

Evaluation of non-sputum-based diagnostics for pediatric tuberculosis: the Pediatric TB Diagnostic (PDTBDx) cohort protocol.
(2026 Apr 3)
medRxiv
Mullen B, Githua J, Escudero JN, Mecha J, Kijaro L, Ndunge M, Muriithi M, Kibet I, John-Stewart G, Maleche-Obimbo E, Nduba V, LaCourse SM
Prevalence and Incidence of Chlamydia trachomatis and Neisseria gonorrhoeae Among Women Who Initiated HIV PrEP During Pregnancy in Kenya.
(2026 Apr 1)
J Acquir Immune Defic Syndr 101(4): 346-354
Mogaka JN, Mugambi M, Abuna F, Akim E, Gómez L, Morroni C, Mussa A, Ngumbau N, Owiti P, Watoyi S, Webel A, Richardson BA, Kinuthia J, John-Stewart G, Pintye J
Perinatal Depression, Maternal Engagement and Child Social-Emotional Development: A Cohort Study.
(2026 Apr 2)
Paediatr Perinat Epidemiol
Larsen A, Kinuthia J, Abuna F, Dettinger JC, Gomez L, Marwa M, Ngumbau N, Odhiambo B, Watoyi S, Stern J, Richardson BA, John-Stewart G, Pintye J
Navigating viral load information flow and provider decision-making for adolescent clients at HIV clinics in Kenya.
(2026 Dec 31)
HIV Res Clin Pract 27(1): 2650034
Oja D, Kundu C, Onyango A, Mugo C, Njuguna I, Morra H, Wamalwa D, Pintye J, John-Stewart G, Altman MR, Kohler P
Outcomes of the three-month weekly isoniazid with rifapentine (3HP) versus the six-month isoniazid preventive therapy (6H) among people newly enrolled in HIV care in western Kenya.
(2026 Mar 5)
medRxiv
Onyango DO, Mecha JO, Njagi LN, Aoro S, Malika T, Kinuthia J, John-Stewart G, LaCourse SM
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