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Stefan Baral, MD

Director, Key Populations Program

Associate Professor

Departmental Affiliation(s):


Center & Institute Affiliation(s):

Contact Information

615 N. Wolfe Street
Room E7146
Baltimore , Maryland   21205

(410) 614-8371


MD , Queen's University , 2005
MPH , Johns Hopkins Bloomberg School of Public Health , 2007
MBA , Johns Hopkins Carey Business School , 2007
MSc , McMaster University , 2001


Stefan Baral is a physician epidemiologist who is a member of the faculty in the Department of Epidemiology at the Johns Hopkins School of Public Health. Stefan completed his undergraduate education at McGill University, followed by graduate training in gene therapeutics and vaccine development at McMaster University, and medical education at Queen's University.  He received certification by the Canadian Coucil of Family Physicians and the Royal College of Physicians and Surgeons of Canada with training at the University of Toronto in Family Medicine and Public Health Medicine, respectively.

Stefan has been involved with a series of global initiatives focused on HIV among key populations with the goal of being part of a team that rewrites the narrative of the epidemiology of HIV worldwide.  HE has led projects with with the World Bank, amfAR MSM Initiative, Global Fund, UNDP, and UNFPA.  Stefan has led data collection characterizing HIV epidemiology and associated risk factors for key populations in numerous countries in Southern, Eastern, and Western Africa including Malawi, Namibia, Botswana, South Africa, Nigeria, Senegal, Lesotho, Zambia, Guinea-Bissau, Swaziland, The Gambia, Zimbabwe as well as in parts of Asia.  Stefan is also leading HIV Prevention projects funded by NIH, USAID, and others for key populations in several settings including Malawi, South Africa, Kenya, Senegal, and Nigeria.  Stefan acts as Associate Director for key populations of the Center for Public Health and Human Rights.

Honors and Awards


C.P. Shah Award for Resident Research Project, Dalla Lana School of Public Health, University of Toronto




Designated as one of the  “Leaders of Tomorrow”, Faculty of Medicine, University of Toronto




Award for Best Resident Research Project, Department of Family and Community Medicine, University of Toronto




Patient Advocacy Award, Department of Family and Community Medicine, University of Toronto




High Commendation, 90/10 Health Gap Essay Competition, , Global Forum for Health Research



Medical Student Citizenship Award, Professional Association of Residents and Interns of Ontario (PAIRO)  




Betty O’Neil Scanlon & Dr. Francis Cannella Bursary, Faculty of Medicine, Queen’s University

epidemiology, men who have sex with men, most at risk populations, criminalization, human rights abuses, HIV, sexually transmitted infections, Africa, sex work, injection drug users


    1. Trapence G, Collins C, Avrett S, Carr R, Sanchez H, Baral, S. (2012) From personal survival to public health: community leadership by men who have sex with men in the response to HIV. Lancet 380: 400-410.



    2. Semugoma P, Nemande S, Baral SD (2012) The irony of homophobia in Africa. Lancet 380: 312-314.






    4. Grosso AL, Hoan Tram K, Ryan O, Baral S (2012) Countries Where HIV Is Concentrated Among Most-At-Risk Populations Get Disproportionally Lower Funding From PEPFAR. Health Aff (Millwood) 31: 1519-1528.