University of Pittsburgh, Elizabeth Glaser Pediatric AIDS Foundation, University of California, San Francisco (UCSF) - Department of Medicine, Institut National de Recherche Biomédicale, Université Officielle de Mbujimayi, Université Officielle de Mbujimayi, Hospital Pediátrico David Bernardino, Hospital Pediátrico David Bernardino, University of Abuja, University of Abuja, University of Abuja, Komfo Anokye Teaching Hospital, Université Félix-Houphouët-Boigny, Université Félix Houphouët-Boigny, Université des Sciences et Techniques de Masuku, Muhimbili University of Health and Allied Sciences, Makerere University, Makerere University College of Health Sciences, Muhimbili University of Health and Allied Sciences, Muhimbili University of Health and Allied Sciences, University of Dschang, Essos Hospital Centre, Cheikh Anta Diop University of Dakar, Université Cheikh Anta Diop (UCAD), Gaston Berger University, University of Zambia, University of Zimbabwe, University of KwaZulu-Natal, University College London and McMaster University