[1] Uganda Virus Res Inst, Entebbe, Uganda
[2] Plateau State Human Virol Res Ctr, Inst Human Virol Nigeria, Jos, Nigeria
[3] Minist Hlth Botswana, Hlth Res Unit, Gaborone, Botswana
[4] Univ Yaounde, Fac Med & Biomed Sci, Yaounde, Cameroon
[5] Univ KwaZulu Natal, Sch Psychol, Pietermaritzburg, Kwazulu Natal, South Africa
[6] Univ Cheikh Anta Diop, Lab Bacteriol Virol, Dakar, Senegal
[7] Makerere Univ, Dept Med, Kampala, Uganda
[8] Ctr Dis Control & Prevent, Atlanta, GA USA
[9] Sci Med Res Pty Ltd, Cape Town, Western Cape, South Africa
[10] Univ Cape Town, Inst Infect Dis & Mol Med, ZA-7925 Cape Town, Western Cape, South Africa
[11] Med Biotech Labs, Addis Ababa, Ethiopia