[1] Univ Witwatersrand, Helen Joseph Hosp, Dept Med, Johannesburg, South Africa
[2] Univ Cape Town, Fac Med, Dept Infect Dis, Cape Town, South Africa
[3] Univ Cape Town, Groote Schuur Hosp, Dept Med, Div Infect Dis & HIV Med, Cape Town, South Africa
[4] Medecins Sans Frontieres MSF, Southern African Med Unit, Cape Town, South Africa
[5] Livingstone Tertiary Hosp, Dept Med, Div Infect Dis, Port Elizabeth, South Africa
[6] Anova Hlth Inst, Johannesburg, South Africa
[7] Univ Cape Town, Dept Med, Div Clin Pharmacol, Cape Town, South Africa
[8] Pietersburg Hosp, Sch Med, Dept Internal Med, Polokwane, South Africa
[9] Univ Limpopo, Sch Med, Dept Med, Turfloop, South Africa
[10] Univ KwaZulu Natal, Dept Infect Dis, Div Internal Med, Durban, South Africa
[11] Phomolong Med Ctr, Rustenburg, South Africa
[12] Univ Witwatersrand, Fac Hlth Sci, Reprod Hlth & HIV Inst, Johannesburg, South Africa
[13] Amathole Dist Clin Specialist Team, East London, South Africa
[14] Sefako Makgatho Hlth Sci Univ, Fac Med, Dept Infect Dis, Pretoria, South Africa
[15] Dr George Mokhari Hosp, Dept Med, Pretoria, South Africa
[16] Natl Hlth Lab Serv, Dept Med Virol, Tygerberg, South Africa
[17] Stellenbosch Univ, Fac Med & Hlth, Dept Pathol, Cape Town, South Africa
[18] Wits Hlth Consortium, Clin HIV Res Unit, Johannesburg, South Africa
[19] Frere & Cecilia Makiwane Hosp, Fac Infect Dis, Dept Med, East London, South Africa
[20] Walter Sisulu Univ, Fac Hlth Sci, Dept Med, Mthatha, South Africa
[21] Mil Hosp, Dept Internal Med, Bloemfontein, South Africa
[22] Univ Free State, Fac Hlth Sci, Dept Internal Med, Bloemfontein, South Africa
[23] Univ Witwatersrand, Fac Hlth Sci, Ezintsha, Johannesburg, South Africa