Dr. Ann Burchell is Research Director at the Department of Family and Community Medicine and Scientist at the MAP Centre for Urban Health Solutions at St. Michael’s Hospital, Toronto. She is a Canada Research Chair in Sexually Transmitted Infection Prevention. She holds degrees in epidemiology from the University of Toronto (MSc) and McGill University (PhD) and has academic appointments as Associate Professor, Department of Family and Community Medicine, Faculty of Medicine, and Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto; Adjunct Professor, Division of Cancer Epidemiology, McGill University; and Adjunct Scientist, Institute for Clinical Evaluative Medicine, Toronto.

Dr. Burchell’s research program focuses on the epidemiology of human immunodeficiency virus (HIV) infection, human papillomavirus (HPV), syphilis, and other sexually transmitted infections (STIs). Its goal is to generate evidence for effective and practical strategies to prevent STIs and STI-related cancers in high-risk populations, including people living with or at risk for HIV.

She has extensive methodological experience in the design and implementation of: observational longitudinal studies with primary and secondary data; sexual behaviour and health-access questionnaires; natural history studies using laboratory markers of infection; and pragmatic randomized trials for HPV prevention and improved screening for syphilis, cervical and anal cancer. She currently holds a Foundation Grant from the Canadian Institutes of Health Research.

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Recent Publications

  1. Chambers, C, Deeks, SL, Sutradhar, R, Cox, J, de Pokomandy, A, Grennan, T et al.. Self-reported Human Papillomavirus Vaccination and Vaccine Effectiveness Among Men Who Have Sex with Men: A Quantitative Bias Analysis. Epidemiology. 2023;34 (2):225-229. doi: 10.1097/EDE.0000000000001580. PubMed PMID:36722804 .
  2. Chambers, C, Deeks, SL, Sutradhar, R, Cox, J, de Pokomandy, A, Grennan, T et al.. Vaccine effectiveness against 12-month incident and persistent anal human papillomavirus infection among gay, bisexual, and other men who have sex with men. J Infect Dis. 2023; :. doi: 10.1093/infdis/jiad005. PubMed PMID:36655513 .
  3. Gillis, JL, Grennan, T, Grewal, R, Ogilvie, G, Gaspar, M, Grace, D et al.. Influence of previous experience with and beliefs regarding anal cancer screening on willingness to be screened among men living with HIV. BMC Public Health. 2022;22 (1):2444. doi: 10.1186/s12889-022-14471-4. PubMed PMID:36577960 PubMed Central PMC9795733.
  4. Costiniuk, CT, Singer, J, Lee, T, Langlois, MA, Arnold, C, Galipeau, Y et al.. COVID-19 vaccine immunogenicity in people with HIV. AIDS. 2023;37 (1):F1-F10. doi: 10.1097/QAD.0000000000003429. PubMed PMID:36476452 PubMed Central PMC9794000.
  5. Fowokan, A, Samji, H, Puyat, JH, Janjua, NZ, Wilton, J, Wong, J et al.. Effectiveness of COVID-19 vaccines in people living with HIV in British Columbia and comparisons with a matched HIV-negative cohort: a test-negative design. Int J Infect Dis. 2023;127 :162-170. doi: 10.1016/j.ijid.2022.11.035. PubMed PMID:36462571 PubMed Central PMC9711901.
  6. Medeiros, P, Warren, L, Kazemi, M, Massaquoi, N, Smith, S, Tharao, W et al.. HIV care cascade for women living with HIV in the Greater Toronto Area versus the rest of Ontario and Canada. Int J STD AIDS. 2023;34 (1):4-17. doi: 10.1177/09564624221108034. PubMed PMID:36411243 PubMed Central PMC9806481.
  7. Morais, S, Wissing, MD, Khosrow-Khavar, F, Burchell, AN, Tellier, PP, Coutlée, F et al.. Serologic response to human papillomavirus genotypes among unvaccinated females: Findings from the HITCH cohort study. J Infect Dis. 2022; :. doi: 10.1093/infdis/jiac437. PubMed PMID:36322543 .
  8. Chambers, C, Samji, H, Cooper, CL, Costiniuk, CT, Janjua, NZ, Kroch, AE et al.. Coronavirus disease 2019 vaccine effectiveness among a population-based cohort of people living with HIV. AIDS. 2022;36 (15):F17-F26. doi: 10.1097/QAD.0000000000003405. PubMed PMID:36254892 PubMed Central PMC9696686.
  9. Christensen, BL, Tavangar, F, Kroch, AE, Burchell, AN, Rourke, SB, Rousseau, RK et al.. Previous Syphilis Not Associated With Neurocognitive Outcomes in People Living With Human Immunodeficiency Virus in Ontario, Canada. Sex Transm Dis. 2023;50 (1):34-41. doi: 10.1097/OLQ.0000000000001716. PubMed PMID:36150077 .
  10. Rana, J, Burchell, AN, Wang, S, Logie, CH, Lisk, R, Gesink, D et al.. Community perspectives on ideal bacterial STI testing services for gay, bisexual, and other men who have sex with men in Toronto, Canada: a qualitative study. BMC Health Serv Res. 2022;22 (1):1194. doi: 10.1186/s12913-022-08529-7. PubMed PMID:36138450 PubMed Central PMC9502589.
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Affiliations & Other Activities

  • Associate Professor, Dalla Lana School of Public Health, University of Toronto,
  • Associate Professor, Department of Family and Community Medicine, University of Toronto