Elvin Geng, MD, MPH, is the Virginia Minnich Distinguished Professor of Medicine and a professor of medicine in the Division of Infectious Diseases at WashU Medicine. He also is a co-director of the Bursky School’s Dissemination & Implementation Science Innovation Research Network (DISIRN). Using the lens of implementation science, he conducts research to optimize the use of evidence-based interventions to end the HIV epidemic as a public-health threat.