1. Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital and South African Medical Research Council Unit on Child and Adolescent Health and
2. Division of Medical Microbiology, University of Cape Town, Cape Town, South Africa
3. Foundation for Innovative New Diagnostics, Geneva, Switzerland
4. Center of Infectious Diseases, University of Heidelberg, Heidelberg, Germany and
5. School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia