Dr. David Hafler is the Jack, Sadie and David Breakstone Professor of Neurology (Neuroscience) at the Harvard Medical School, and a Physician at the Brigham and Women's Hospital and the Massachusetts General Hospital in Boston. Dr. Hafler graduated magna cum laude in 1974 from Emory University with combined B.S. and M.Sc. degrees in biochemistry, and from the University of Miami School of Medicine in 1978. He then completed his internship in internal medicine at Johns Hopkins followed by a neurology residency at Cornell Medical Center-New York Hospital in New York. Dr. Hafler received training in immunology at the Rockefeller University, and then at Harvard where he joined the faculty in 1984. He is one of the Executive Directors of the Program in Immunology at Harvard Medical School and is on the faculty of the Harvard-MIT Health Science and Technology program. Dr. Hafler has been elected to membership in the American Society of Clinical Investigation, the American Neurological Association, the Alpha Omega Society, and was a Harvey Weaver Scholar of the National Multiple Sclerosis Society. He is currently a member of the editorial boards for the Journal of Clinical Investigation and the Journal of Experimental Medicine, and is a co-founder of the Federation of Clinical Immunology Societies. Dr. Hafler heads the Division of Molecular Immunology in the Center for Neurologic Diseases, Harvard Medical School. He is a clinical scientist with a research interest in understanding the mechanism of autoimmunity with a particular interest in inflammatory central nervous system diseases, with over 270 publications in the field of autoimmunity and immunology.