Director of the Center for Tropical and Emerging Global Diseases, University of Georgia
Professor of Clinical Tropical Medicine at the London School of Hygiene and Tropical Medicine, UK
Director MRC/UVRI Uganda Research Unit on AIDS and the Head of MRC-UVRI Basic Sciences Programme
Director, MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, University of Witwatersrand, South Africa