1. Section on Retrovirology and Global Health, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA; Center for Global Health, Texas Children's Hospital, Houston, Texas, USA; and Desmond Tutu TB Centre, Department
of Pediatrics and Child Health, Stellenbosch University, Cape Town, South Africa
2. Geisinger Clinic, Danville, Pennsylvania, USA
3. Medical Research Council, Cape Town, South Africa
4. Molecular Biology and Human Genetics, Faculty of Health Sciences, Stellenbosch University, Cape Town, South Africa
5. Section of Microbiology and Immunology, The Gade Institute, University of Bergen, Bergen, Norway; and Department of Microbiology, Haukeland University Hospital, Bergen, Norway
6. Center for Global Health, Texas Children's Hospital, Houston, Texas, USA