Dr. Kelly is Professor of Medicine at Harvard Medical School and an Attending Gastroenterologist and Associate Director of Gastroenterology Training at Beth Israel Deaconess Medical Center (BIDMC), Boston, Massachusetts. Dr. Kelly has longstanding clinical and research interests in intestinal infection and inflammation. He is the author of more than 300 clinical and basic research book chapters, invited reviews, and peer-reviewed publications appearing in such journals as Infection & Immunity, American Journal of Physiology, Gastroenterology, Journal of Biological Chemistry, Journal of Clinical Investigation, The Lancet and New England Journal of Medicine. For over 20 years Dr Kelly has committed himself to finding new medical solutions to C. diﬃcile infection, inflammatory bowel disease and Celiac Disease. As Medical Director of the Celiac Center at BIDMC he heads clinical, research and educational programs in celiac disease.