Dr. Horsburgh has 30 years of experience in public health and medicine. He currently holds faculty positions in the Departments of Epidemiology, Biostatistics, Global Health and Medicine. Dr. Horsburgh teaches courses in the Epidemiology of AIDS and the Epidemiology of Tuberculosis. His research focuses on tuberculosis, nontuberculous mycobacterial infections and opportunistic infections in AIDS. Currently, he is involved in research in Brazil, India, Peru, South Africa and Tanzania. He is currently the Vice-President of the International Union Against Tuberculosis and Lung Disease (IUATLD); President of the North American Region of the IUATLD.; and Chairman of the Steering Committee of RESIST-TB, an international organization dedicated to improving MDR-TB treatment through Clinical Trials (www.resisttb.org).