[1] Univ Washington, Sch Publ Hlth, Dept Global Hlth, Seattle, WA 98195 USA
[2] Univ Washington, Sch Med, Seattle, WA USA
[3] Univ Washington, Sch Med, Dept Med, Seattle, WA 98195 USA
[4] Univ Washington, Dept Epidemiol, Sch Publ Hlth, Seattle, WA 98195 USA
[5] Univ Oxford, Nuffield Dept Primary Care Hlth Sci, Oxford, England
[6] Univ KwaZulu Natal, Ctr AIDS Programme Res South Africa, Durban, South Africa
[7] Univ KwaZulu Natal, Sch Lab Med & Med Sci, Durban, South Africa
[8] Univ KwaZulu Natal, Sch Nursing & Publ Hlth, Durban, South Africa
[9] Univ KwaZulu Natal, CAPRISA MRC HIV TB Pathogenesis & Treatment Res U, Durban, South Africa
[10] Univ KwaZulu Natal, Doris Duke Med Res Inst, Durban, South Africa
[11] Prince Cyril Zulu Communicable Dis Clin Durban Mu, Durban, South Africa
[12] Natl Hlth Lab Serv, Durban, South Africa
[13] Inkosi Albert Luthuli Cent Hosp, Dept Virol, Cato Manor, South Africa
[14] Columbia Univ, Dept Epidemiol, New York, NY USA