He holds Master of Social Work and Juris Doctor degrees from the University of Toronto, and is currently a Doctor of Juridical Science candidate at the same university. His research program focuses on the examination of health inequities facing marginalized populations, particularly noncitizens and racialized minorities. His published work has touched on such topics as health rights litigation, refugee health care, social determinant of health, and medical tourism. Between 2009 and 2011, Y.Y. was publicly appointed to the Ontario Advisory Committee on HIV/AIDS. He served as the Co-Chair of the Committee for Accessible AIDS Treatment from 2014 to 2016. He is currently a Board member of the Canadian Centre on Statelessness.