Dr. Sean T. Allen is a faculty member at the Johns Hopkins Bloomberg School of Public Health in the Department of Health, Behavior and Society. He has conducted research on a number of harm reduction policy initiatives, including the cost-effectiveness of syringe services program implementation. He has published extensively on geospatial aspects of injection drug use and service utilization among people who inject drugs. Allen completed his post-doctoral training at Johns Hopkins University in the Drug Dependence Epidemiology Training Program. During his post-doctoral training, he served as a Senior Policy Advisor at the White House Office of National Drug Control Policy. Allen completed his doctoral training at The George Washington University, where he received his doctorate in public health - health behavior. He also holds a master's degree in public health and dual bachelor's degrees in biology and agriculture - entomology from the University of Kentucky.