Dr Kelly is Professor of Medicine at Harvard Medical School and Chief of the Herrman L. Blumgart Internal Medicine Firm, Director of Gastroenterology Training and Medical Director of the Celiac Center at Beth Israel Deaconess Medical Center, Boston, Massachusetts. Dr. Kelly has longstanding clinical and research interests in intestinal infection and inflammation. He is the author of more than 150 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. He heads clinical, research and educational programs in celiac disease as Medical Director of the Celiac Center at Harvard.