She earned her Ph.D. in Epidemiology at the University of Illinois at Chicago. Dr. Johnson has advanced training in program evaluation, quantitative and qualitative analysis. In addition, Dr. Johnson has a background in social work and therefore brings a strengths-based trauma-informed approach to her research and evaluation work. Dr. Johnson’s primary area of expertise and interest lies in applied HIV and STI prevention and care intervention research. Her work focuses on high priority areas of HIV intervention implementation, risk assessment and developing/assessing prevention packages, as well as in adolescent sexual health. Feinberg Faculty Profile