Dr. Feld attended medical school at the University of Toronto and then completed residency programs in Internal Medicine and Gastroenterology. Following his clinical training, Dr. Feld focused on developing skills in clinical and laboratory research in liver disease, with a particular interest in viral hepatitis. He completed a clinical research fellowship in hepatology and then spent 4 years doing clinical and laboratory research in the Liver Diseases Branch of the National Institutes of Health. He received a Masters of Public Health with a focus on Infectious Diseases as a Sommer Scholar from Johns Hopkins University and has worked extensively abroad, maintaining a strong interest in International Health. Dr. Feld holds the R. Phelan Chair in Translational Liver Research as a clinician-scientist at the Toronto Centre for Liver Disease in the Toronto General Hospital and the Sandra Rotman Centre for Global Health at the University of Toronto. He leads a large clinical research team evaluating new therapeutics and diagnostics for hepatitis B and C virus infections and has led pivotal international trials to establish new treatment paradigms. He serves on the AASLD/IDSA hepatitis C treatment guidance panel and the Panamerican Health Organization Technical Advisory Group on Viral Hepatitis and has co-chaired international congresses including the International Symposium on Viral Hepatitis and Liver Disease, the International Viral Hepatitis Elimination Meeting and HCV2020. He founded and co-Chairs the Schwartz-Reisman Liver Research Centre that brings together all senior investigators doing basic and translational research in liver disease at the University of Toronto. His primary laboratory interests focus on understanding virological adaptations to the intrahepatic antiviral immune response.