1. Centro de Investigação Operacional da Beira, Instituto Nacional de Saúde Beira, Mozambique, Field Epidemiology Laboratory Training Program, Maputo, Mozambique
2. Health System and Policy Program, Instituto Nacional de Saúde, Maputo, Mozambique
3. Faculdade de Medicina, Universidade Eduardo Mondlane, Maputo, Mozambique
4. Programa Nacional de Controle de ITS/SIDA, Ministério da Saúde, Maputo, Mozambique
5. David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA