Sean B. Rourke

PhD, FCAHS

Scientist

Biography

Sean B. Rourke, born and raised in Windsor, Ontario, is a Clinical Neuropsychologist and Scientist with MAP Centre for Urban Health Solutions at St. Michael’s Hospital, Unity Health Toronto, and is a Professor of Psychiatry at the University of Toronto. He is an international expert in the neurobehavioural complications of HIV. He is also the Director of two national centres funded by Canadian Institutes of Health Research (CIHR): the CIHR-funded REACH Nexus and the CIHR Community-Based Research (CBR) Collaborative Centre for HIV, both of which focus on pragmatic solutions for HIV and other sexually transmitted and blood-borne infections (STBBIs) in Canada.

In Nov. 2020, Sean’s research with REACH Nexus succeeded in getting Canada’s first HIV self-test approved, a significant step forward in ending Canada’s HIV epidemic. Next up, in spring 2021, REACH will be launching I’m Ready, a major national research program that will be distributing over 50,000 free HIV self-testing kits and asking questions from the people who will use them to improve HIV testing and care in Canada. I’m Ready is a truly national effort, where Sean is working together with community-based partners, academics, public health and with the government and policy sectors across Canada.

The I’m Ready research program is part of REACH Nexus’s broader I’m Ready to Know project, which aims to end HIV in Canada in the next 3-5 years with low-barrier access to self-testing and connections to care. As part of I’m Ready to Know, Sean and the REACH team are working on a host of diverse and low-barrier strategies to reach key populations in different communities, such as pharmacist-led connections to care and interactive refitted vending machines to distribute HIV self-testing kits. Additionally, REACH is currently leading clinical trials that have the potential to get a second HIV self-test approved in Canada—one that can be conducted with blood or oral fluid.

Sean knows that ending the HIV epidemic in Canada is within reach, but only if we can connect the 8,300 people living with HIV who are undiagnosed (unaware of their status) and the 7,840 people diagnosed with HIV to care and get everyone access to life-saving treatments. When people are on treatment and their virus is suppressed, they cannot transmit HIV to their sexual partners. Treatment as prevention is a highly effective public health intervention, which is why connecting people to care and prevention is central to REACH’s work.

Sean is confident that the pragmatic approaches REACH’s research is taking will make a difference, but acknowledges that we also need to address the many reasons that some people and key populations are harder to reach and face more barriers in Canada to testing and care than others: these include systemic racism, the legacy of colonization including residential schools, and stigma and discrimination in various forms—including gender-based and against LGBTQ2+ communities. These barriers to access have been exacerbated during COVID-19.

As part of reducing barriers and combatting HIV-related stigma, REACH Nexus is also leading a national anti-stigma project, The Positive Effect—which includes the pozcast podcast—that uses storytelling and sharing the lived experience of people living with HIV to build awareness and resilience. REACH Nexus’s research has clearly shown that we can’t end HIV in Canada without defeating HIV-related stigma—a common barrier to testing, care and social support.

Overall, Sean is transforming how implementation science can be used to have a stronger impact on policies and frontline services and to solve complex health problems for people living with or at risk for HIV/AIDS. With his novel and effective approach to community stakeholder engagement, partnership development across disciplines and sectors, innovative knowledge transfer and exchange and research-to-action strategies, Sean is having a major influence on us getting closer to the end of the HIV epidemic in Canada.

Recent Publications

  1. Chakraborty, D, Djiadeu, P, Ziegler, C, Chabikuli, A, Ifeanacho, E, Awoliyi, M et al.. Advancing HIV pre-exposure prophylaxis (PrEP) implementation in Canada: a scoping review protocol of programmes, practices and policies. BMJ Open. 2025;15 (10):e107054. doi: 10.1136/bmjopen-2025-107054. PubMed PMID:41062147 PubMed Central PMC12506201.
  2. Tran, A, Watson, JR, Lo Hog Tian, JM, McBain, K, Miller, AD, Boni, AR et al.. Awareness, acceptance, and impact of undetectable equals untransmittable (U = U) among people living with HIV across Canada. AIDS Care. 2025; :1-12. doi: 10.1080/09540121.2025.2562238. PubMed PMID:41025545 .
  3. Sok, P, Seeman, MV, Rourke, SB. Study characteristics on health-related quality of life in older people living with human immunodeficiency virus: A narrative review. World J Virol. 2025;14 (3):111071. doi: 10.5501/wjv.v14.i3.111071. PubMed PMID:41025089 PubMed Central PMC12476819.
  4. Lo Hog Tian, JM, Watson, JR, Tran, A, Maunder, RG, Parsons, JA, Turan, B et al.. The moderating effect of healthcare empowerment on the relationship between stigma and self-rated health in people living with HIV in Canada. HIV Med. 2025;26 (11):1727-1738. doi: 10.1111/hiv.70108. PubMed PMID:40954443 .
  5. Tam, AC, Mohammadi, T, Snow, ME, O'Byrne, P, Rourke, SB, Anis, AH et al.. Preferences for testing for sexually transmitted and blood-borne infections in adults in Canada: a discrete choice experiment. Sex Transm Infect. 2025; :. doi: 10.1136/sextrans-2025-056553. PubMed PMID:40903274 .
  6. Chabikuli, A, Chakraborty, D, Ziegler, C, Djiadeu, P, Mgbatogu, K, Ifeanacho, E et al.. Barriers and facilitators of HIV pre-exposure prophylaxis (PrEP) uptake and use in Canada: a scoping review protocol. BMJ Open. 2025;15 (7):e101541. doi: 10.1136/bmjopen-2025-101541. PubMed PMID:40659390 PubMed Central PMC12258332.
  7. Eliopoulos, A, Rivera, B, McCullough, E, Singh, AE, Gratrix, J, Tipples, G et al.. Performance of the bioLytical Multiplex HIV 1/2 and Syphilis rapid test on serum in a laboratory evaluation for syphilis. Microbiol Spectr. 2025;13 (7):e0013225. doi: 10.1128/spectrum.00132-25. PubMed PMID:40387374 PubMed Central PMC12211080.
  8. Lo Hog Tian, JM, McFarland, A, Penny, L, Bennett, T, Musumbulwa, K, Watson, JR et al.. Intersecting gender, ethnicity, and sexual orientation identities and HIV stigma: results from the People Living with HIV Stigma Index study in three provinces in Canada. Cult Health Sex. 2025;27 (12):1624-1641. doi: 10.1080/13691058.2025.2499638. PubMed PMID:40367236 .
  9. Snow, ME, Berger, MH, Tam, AC, Easterbrook, A, Okechukwu, CE, Mohammadi, T et al.. Attributes that influence testing decisions for sexually transmitted and blood-borne infections: A qualitative study among diverse people in Canada. Int J STD AIDS. 2025;36 (8):622-632. doi: 10.1177/09564624251337595. PubMed PMID:40305648 PubMed Central PMC12198459.
  10. Ratnayake, A, Cysique, LA, Rourke, SB. Diagnosis of Learning Disabilities but not Academic Difficulties Alone is Associated with Neurocognitive Impairment in People Living with HIV: Evidence from Clinical Research to Support and Refine the Current HAND Diagnostic Guidelines. AIDS Behav. 2025;29 (8):2509-2518. doi: 10.1007/s10461-025-04711-0. PubMed PMID:40289035 PubMed Central PMC12378784.
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Affiliations & Other Activities

  • Professor, Department of Psychiatry, University of Toronto
  • Director, REACH Nexus
  • Director, CIHR CBR Collaborative Centre