1. Department of Defense HIV Program–Nigeria, Abuja, Nigeria; U.S. Military HIV Research Program, Rockville, Maryland.
2. U.S. Military HIV Research Program; Henry Jackson Foundation for the Advancement of Military Medicine, Rockville, Maryland.
3. Division of Retrovirology, Walter Reed Army Institute of Research, Rockville, Maryland; U.S. Military HIV Research Program, Rockville, Maryland.
4. Infectious Disease Clinical Research Program, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
5. Armed Forces Health Surveillance Center, Department of Defense Global Emerging Surveillance and Response System, Silver Spring, Maryland.
6. Bill & Melinda Gates Foundation, Seattle, Washington.