[1] Johns Hopkins Univ, Dept Populat & Family Hlth Sci, Bloomberg Sch Publ Hlth, Baltimore, MD USA
[2] Makerere Univ, Inst Publ Hlth, Kampala, Uganda
[3] Uganda Virus Res Inst, Rakai Project, Entebbe, Uganda
[4] Makerere Univ, Dept Med, Kampala, Uganda
[5] Makerere Univ, Clin Epidemiol Unit, Kampala, Uganda
[6] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD 21205 USA
[7] Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA
[8] NIAID, NIH, Rockville, MD 20852 USA
[9] Columbia Univ, Ctr Populat & Family Hlth, Joseph L Mailman Sch Publ Hlth, New York, NY 10027 USA
[10] Emory Univ, Dept Pathol, Atlanta, GA 30322 USA
[11] Walter Reed Army Med Ctr, Walter Reed Army Inst Res, Dept Pathol, Washington, DC 20307 USA