[1] Univ Washington, Dept Global Hlth, Seattle, WA 98104 USA
[2] Univ Washington, Dept Med, Seattle, WA 98104 USA
[3] Univ Washington, Dept Epidemiol, Seattle, WA 98104 USA
[4] Univ Alabama Birmingham, Dept Med, Birmingham, AL 35294 USA
[5] Ctr Infect Dis Res Zambia, Lusaka, Zambia
[6] Univ Witwatersrand, Sch Clin Med, Wits Inst Reprod Hlth & HIV, Johannesburg, South Africa
[7] Univ Washington, Dept Biostat, Seattle, WA 98104 USA
[8] Univ Washington, Dept Lab Med, Seattle, WA 98104 USA
[9] Fred Hutchinson Canc Res Ctr, Vaccine & Infect Dis Div, Seattle, WA 98104 USA