Our Members

The following people participate in our network by contributing their time and expertise to be members of our advisory board, committees and working groups. Their guidance helps ensure that the OHTN conducts and supports the most innovative and scientifically rigorous HIV research with the potential to improve the health and well-being of people with HIV in Ontario.  We thank them for their contribution.



Darien Taylor
Darien Taylor
Darien Taylor has been living with HIV for 20 years and has worked in HIV/AIDS throughout that time at the local, regional and national levels. She co-chaired the treatment activist organization AIDS Action Now!, co-founded Voices of Positive Women, the Ontario organization for women living with HIV/AIDS and was one of the editors of Positive Women: Voices of Women Living With AIDS.

She has worked with the Ontario Ministry of Health and Long Term Care and the federal government’s AIDS Community Action Program. Currently, Darien works as the Director of Program Delivery at the Canadian AIDS Treatment Information Exchange and is a member of the OHTN Cohort Study Governance Committee.
Wangari Tharao
Wangari Tharao
Wangari Tharao is The Program and Research Manager at Women’s Health in Women’s Hands CHC. She is also a PhD candidate at the University of Toronto, Dalla Lana School of Public Health, Health and Behavioural Sciences Program. She has sat on various boards, working groups, and advisory and review committees including the OHTN Scientific Review Committee, Ontario Advisory Committee on HIV/AIDS, Ontario HIV Endemic Task Force and Ministerial Council of the Canadian Strategy on HIV/AIDS. She is currently the Co-Chair of the African and Caribbean Council on HIV/AIDS in Ontario (ACCHO), Chair of the Governing Council of the African and Black Diaspora Global Network on HIV and AIDS and a member of the OHTN Community Network Advisory Committee.
Shannon Thomas Ryan
Shannon Thomas Ryan is the Executive Director of the Black Coalition for AIDS Prevention (Black CAP). Black CAP is a charitable organization that is focused on reducing the spread of HIV infection within Toronto's Black, African and Caribbean communities and enhancing the quality of life of Black people living with or affected by HIV or AIDS. Shannon has led Black CAP through a period of stabilization and significant growth and is highly committed to the HIV/AIDS sector and to working within marginalized and racialized communities. Prior to working at Black CAP, Shannon was an Allocations Manager at the United Way of Greater Toronto. In this role he worked with a range of neighbourhood, health, settlement and children's agencies in Toronto. He has held positions at the City of Toronto and Ryerson University and is also a graduate of the Ryerson School of Social Work. Shannon sits on a number of committees, councils and Boards, including: the Ontario Ministerial Advisory Committee on HIV/AIDS (OACHA), the Ontario AIDS Network (OAN), the African Caribbean Council on HIV/AIDS in Ontario (ACCHO), the Committee for Accessible AIDS Treatment (CAAT), the Canadian Centre for Victims of Torture, and the Toronto HIV Network.
Ruthann Tucker
Ruthann Tucker
Ruthann Tucker, has been working in the community-based HIV/AIDS field for almost 20 years including appointments as the Executive Director of Fife House in Toronto, AIDS Vancouver Island (AVI), Director of Human Resources at the AIDS Committee of Toronto (ACT), as a member of the Ontario Advisory Committee on HIV/AIDS and finally appointments to the Boards of Directors for the Canadian AIDS Treatment Information Exchange (CATIE), the Pacific AIDS Network (PAN) and the Ontario AIDS Network (OAN). Ruthann is Co-Principal Investigator on the Positive Spaces, Healthy Places Study in Ontario.
Jill Tinmouth
Dr. Jill Tinmouth is a scientist in clinical epidemiology in the cancer program at Sunnybrook Research Institute, an associate physician at Sunnybrook Health Sciences Centre and an assistant professor in the department of medicine, University of Toronto. Her research focus is in the area of gastrointestinal cancers. Currently, she is studying esophageal and anal cancer on a population level as well as investigating strategies to prevent these cancers in high-risk populations. Her research extends to the study of research methodology in digestive diseases. Her clinical interests are anal cancer and HIV-related gastrointestinal problems. She is currently funded by the Canadian Institutes of Health Research and has received funding from the Canadian Association of Gastroenterology, the Canadian HIV Trials Network and the Ontario HIV Treatment Network in the past.


Two Torontonians are newly infected with HIV/AIDS every day, according to a report released by Casey House.