Dr. Julia Marcus is an infectious disease epidemiologist and Assistant Professor in the Department of Population Medicine at Harvard Medical School and Harvard Pilgrim Health Care Institute, and Adjunct Faculty at The Fenway Institute.Dr. Marcus's research focuses on improving measures to reduce new HIV infections and promote sexual health. Her work on using harm reduction techniques for epidemics has appeared in The Atlantic.Dr. Marcus received her PhD in epidemiology from the University of California, Berkeley, and completed a postdoctoral fellowship at the Kaiser Permanente Division of Research.