Dr Stephen Betschel is Departmental Division Director of Clinical Immunology in the Department of Medicine at the University of Toronto.  He is a Staff Clinical Immunologist and Allergist in the Division of Allergy and Clinical Immunology at St. Michael’s Hospital and Division of Respirology at University Health Network, Toronto.  He earned his medical degree at McMaster University and completed his residency program in Internal Medicine and his fellowship in Clinical Immunology and Allergy at the University of Toronto.  He is an Associate Professor of Medicine at the University of Toronto, where he is director of the Adult Primary Immunodeficiency Clinic.  He also has served as the Program Director of the Adult Clinical Immunology and Allergy Residency Program at the University of Toronto for over a decade.