Ann Burchell


Scientist, Li Ka Shing Knowledge Institute


Ann Burchell is an epidemiologist and Scientist with the Department of Family and Community Medicine and Li Ka Shing Knowledge Institute at St. Michael’s Hospital, Toronto. She holds degrees in epidemiology from the University of Toronto (MSc) and McGill University (PhD) and has academic appointments as Assistant Professor, 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). She has a particular interest in generating evidence for effective, efficient, and practical primary and secondary prevention strategies for control of STIs and STI-related cancers in marginalized communities.

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

Recent Publications

  1. Benoit, AC, Burchell, AN, O'Brien, KK, Raboud, J, Gardner, S, Light, L et al.. Examining the association between stress and antiretroviral therapy adherence among women living with HIV in Toronto, Ontario. HIV Res Clin Pract. 2020; :1-11. doi: 10.1080/25787489.2020.1763711. PubMed PMID:32419657 .
  2. Kaufman, E, de Castro, C, Williamson, T, Lessard, B, Munoz, M, Mayrand, MH et al.. Acceptability of anal cancer screening tests for women living with HIV in the EVVA study. Curr Oncol. 2020;27 (1):19-26. doi: 10.3747/co.27.5401. PubMed PMID:32218656 PubMed Central PMC7096206.
  3. Gillis, JL, Grennan, T, Grewal, R, Ogilvie, G, Gaspar, M, Grace, D et al.. Racial Disparities in Anal Cancer Screening Among Men Living With HIV: Findings From a Clinical Cohort Study. J. Acquir. Immune Defic. Syndr. 2020;84 (3):295-303. doi: 10.1097/QAI.0000000000002335. PubMed PMID:32097251 .
  4. Fusca, L, Hull, M, Ross, P, Grennan, T, Burchell, AN, Bayoumi, AM et al.. High Interest in Syphilis Pre-exposure and Post-exposure Prophylaxis Among Gay, Bisexual and Other Men Who Have Sex With Men in Vancouver and Toronto. Sex Transm Dis. 2020;47 (4):224-231. doi: 10.1097/OLQ.0000000000001130. PubMed PMID:31977974 PubMed Central PMC7077973.
  5. Gaspar, M, Rosenes, R, Burchell, AN, Grennan, T, Salit, I, Grace, D et al.. Diagnosing uncertainty: The challenges of implementing medical screening programs for minority sub-populations in Canada. Soc Sci Med. 2020;244 :112643. doi: 10.1016/j.socscimed.2019.112643. PubMed PMID:31698281 .
  6. Grace, D, Gaspar, M, Rosenes, R, Grewal, R, Burchell, AN, Grennan, T et al.. Economic barriers, evidentiary gaps, and ethical conundrums: a qualitative study of physicians' challenges recommending HPV vaccination to older gay, bisexual, and other men who have sex with men. Int J Equity Health. 2019;18 (1):159. doi: 10.1186/s12939-019-1067-2. PubMed PMID:31623613 PubMed Central PMC6798383.
  7. Wang, L, Moqueet, N, Lambert, G, Grace, D, Rodrigues, R, Cox, J et al.. Population-Level Sexual Mixing According to HIV Status and Preexposure Prophylaxis Use Among Men Who Have Sex With Men in Montreal, Canada: Implications for HIV Prevention. Am. J. Epidemiol. 2020;189 (1):44-54. doi: 10.1093/aje/kwz231. PubMed PMID:31612213 PubMed Central PMC7119299.
  8. Wissing, MD, Burchell, AN, El-Zein, M, Tellier, PP, Coutlée, F, Franco, EL et al.. Vaccination of Young Women Decreases Human Papillomavirus Transmission in Heterosexual Couples: Findings from the HITCH Cohort Study. Cancer Epidemiol. Biomarkers Prev. 2019;28 (11):1825-1834. doi: 10.1158/1055-9965.EPI-19-0618. PubMed PMID:31488413 PubMed Central PMC6825589.
  9. Burchell, AN, Lisk, R, Yeung, A, Rana, J, Bacon, J, Brunetta, J et al.. Community-Directed Bacterial Sexually Transmitted Infection Testing Interventions Among Men Who Have Sex With Men: Protocol for an E-Delphi Study in Toronto, Canada. JMIR Res Protoc. 2019;8 (7):e13801. doi: 10.2196/13801. PubMed PMID:31274111 PubMed Central PMC6637728.
  10. Wissing, MD, Louvanto, K, Comète, E, Burchell, AN, El-Zein, M, Rodrigues, A et al.. Human Papillomavirus Viral Load and Transmission in Young, Recently Formed Heterosexual Couples. J. Infect. Dis. 2019;220 (7):1152-1161. doi: 10.1093/infdis/jiz238. PubMed PMID:31063542 PubMed Central PMC6736425.
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Affiliations & Other Activities

  • Assistant Professor, University of Toronto, Dalla Lana School of Public Health