[1] Univ Pittsburgh, Grad Sch Publ Hlth, Dept Epidemiol & Infect Dis, Pittsburgh, PA 15260 USA
[2] Univ Pittsburgh, Grad Sch Publ Hlth, Dept Microbiol, Pittsburgh, PA 15260 USA
[3] Univ Pittsburgh, Ctr Global Hlth, Dept Microbiol, Pittsburgh, PA 15260 USA
[4] Univ Pittsburgh, Dept Med, Div Infect Dis, Pittsburgh, PA USA
[5] Stellenbosch Univ, Dept Med, Fac Med & Hlth Sci, Cape Town, South Africa
[6] Stellenbosch Univ, Ctr Infect Dis, Fac Med & Hlth Sci, Cape Town, South Africa
[7] Univ Maryland, Sch Med, Dept Epidemiol & Int Hlth, Johns Hopkins Bloomberg Sch Publ Hlth, Baltimore, MD 21201 USA
[8] Univ Maryland, Sch Med, Dept Pediat, Baltimore, MD 21201 USA
[9] Univ Maryland, Sch Med, Inst Human Virol, Baltimore, MD 21201 USA
[10] Inst Human Virol Nigeria, Pediat Adolescent HIV Unit, Abuja, Nigeria
[11] Inst Human Virol Nigeria, Int Res Ctr Excellence, Abuja, Nigeria
[12] Univ Cape Coast, Dept Pediat & Child Hlth, Sch Med Sci, Cape Coast, Ghana
[13] UCL, Div Infect & Immun, London, England
[14] Univ Coll London Hosp, NIHR Biomed Res Ctr, London, England
[15] African Forum Res & Educ Hlth, Kumasi, Ghana
[16] Elizabeth Glaser Pediat AIDS Fdn, Washington, DC USA