Sara Cosgrove, MD, MS, FIDSA, is a professor of medicine in the Division of Infectious Disease at Johns Hopkins University School of Medicine and has a joint appointment in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. She serves as the director of the Department of Antimicrobial Stewardship and the Associate Hospital Epidemiologist at The Johns Hopkins Hospital. Dr. Cosgrove’s research interests include the epidemiology and outcomes of antimicrobial resistance, the development of tools and programs to promote the rational use of antimicrobials, the prevention of hospital-acquired infections and the epidemiology and management of S. aureus bacteremia. Her recent research focuses on strategies for implementation of antimicrobial stewardship activities across all health care settings via a large, multicenter project including hospitals, long-term care facilities and ambulatory practices funded by the Agency for Healthcare Research and Quality. She is a past president of the Society for Healthcare Epidemiology’s Board of Directors and recently rotated off the Presidential Advisory Council on Combating Antibiotic-Resistant Bacteria.