Dr Andrew Scheibe is a medical doctor by training who works in key population programmes and policy in South Africa and the region. His work focuses on the intersections between infectious diseases, determinants of health, and rights, with a particular focus on substance use and harm reduction. He is a technical advisor for TB HIV Care, a researcher at the University of Pretoria’s Community Oriented Primary Care Research Unit and a consultant working for the South African Network of People Who Use Drugs and Population Services International.