Mary is a doctoral student in the Department of Epidemiology. She received her MPH in Epidemiology from Drexel University. After receiving her MPH, Mary completed the CDC/CSTE Applied Epidemiology Fellowship at New York State Department of Health. Prior to beginning her doctoral training, she was an epidemiologist at the Philadelphia Department of Public Health where she implemented the city’s drug overdose fatality review program and led several other epidemiological projects. Her research interests include substance use, infectious diseases, and the importance of harm reduction and policy on improving health outcomes.