1. Department of Paediatrics and Child Health, Tygerberg Hospital and Stellenbosch University, Cape Town, South Africa
2. Desmond Tutu Tuberculosis Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
3. The Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
4. Division of Medical Virology, Stellenbosch University and National Health Laboratory Services, Cape Town, South Africa
5. Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
6. Department of Paediatric Infectious Diseases and Immunology, Amalia Children’s Hospital, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.