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Appointee Biographies

Ontario Advisory Committee on HIV/AIDS (OACHA)


Tobin Brown is a Registered Nurse who has been employed at Positive Care Clinic, Lakeridge Health Whitby since its inception in 2001, and is one of a few Canadian nurses to hold the credential of ACRN (AIDS Certified Registered Nurse). She is committed to providing relevant healthcare services that are evidence-based, equitable and accessible, and consistent with the direction of the Ontario HIV/AIDS Strategy to 2026.


Dr. Paul MacPherson is currently an Associate Professor in the Departments of Medicine and Biochemistry, Microbiology and Immunology at the University of Ottawa. In addition, he is a Staff Physician at The Ottawa Hospital in the Department of Medicine, Division of Infectious Diseases and a Scientist at The Ottawa Hospital Research Institute. Dr. MacPherson's community involvement includes being a Clinical Investigator on the Program Advisory Committee of the Royal College of Physicians and Surgeons of Canada, member of the Ontario HIV Treatment Network Board of Directors, and former member of the CIHR HIV/AIDS Research Advisory Committee. Dr. MacPherson holds a Doctor of Medicine from McMaster University, a Doctor of Philosophy from the University of California at Berkeley, and he completed his specialty training in Internal Medicine at the University of Toronto and subspecialty training in Infectious Diseases at the University of Ottawa.


Fatoumata Ongoiba is currently the Executive Director of Africans in Partnership Against AIDS (APAA), and a leader in the African community. She has worked in a number of capacities related to human rights and humanitarian causes, including as treatment information exchange counselor at CATIE (Canada’s source for information about HIV and hepatitis C) and as a community health promotion worker at the francophone center of Toronto.