William Schaffner, MD, is the medical director of the National Foundation for Infectious Diseases. He is also Professor of Preventive Medicine in the Department of Health Policy and Professor of Medicine in the Division of Infectious Diseases at Vanderbilt University School of Medicine in Nashville, TN. Additionally, he serves as a hospital epidemiologist at Vanderbilt University Hospital. Dr. Schaffner is a member of numerous professional societies, including the Infectious Diseases Society of America, Society of Healthcare Epidemiology of America, and the American Public Health Association. Dr. Schaffner is active in the field of infectious disease research and has authored or co-authored more than 400 published studies, reviews, and book chapters on infectious diseases. He currently serves on the editorial board of a number of scientific journals, including Journal of Infectious Diseases, Vaccine, and the CDC’s Morbidity and Mortality Weekly Report (MMWR). Dr. Schaffner’s work has focused on all aspects of infectious diseases, including epidemiology, infection control, and immunization. In 2009, he received the James D. Bruce Award from the American College of Physicians for “distinguished contributions to preventive medicine.” Dr. Schaffner has worked extensively on the effective use of vaccines in both pediatric and adult populations. He is a strong proponent of collaboration between academic medical centers and public health institutions.