1. Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
2. London School of Hygiene and Tropical Medicine, London, United Kingdom
3. Mwanza Intervention Trials Unit, National Institute for Medical Research, Mwanza, Tanzania
4. Mwanza Research Center, National Institute for Medical Research, Mwanza, Tanzania
5. Janssen Vaccines and Prevention, Leiden, the Netherlands
6. Bugando Medical Center, Mwanza, Tanzania