1. Kheth'Impilo; Cape Town South Africa
2. The South African Department of Science and Technology/National Research Foundation (DST-NRF); Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA); Stellenbosch University; Stellenbosch South Africa
3. UNICEF; New York NY USA
4. School of Public Health; University of the Western Cape; Cape Town South Africa
5. Health Systems Research Unit; South African Medical Research Council; Pretoria South Africa
6. Department of Paediatrics; University of Pretoria; Pretoria South Africa
7. Department of Paediatrics and Child Health; Red Cross War Memorial Children's Hospital; University of Cape Town; Cape Town South Africa
8. Departments of Epidemiology, Infectious Diseases and Microbiology; University of Pittsburgh Graduate School of Public Health; Pittsburgh PA USA
9. Department of Medicine and Centre for Infectious Diseases; Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
10. Departments of Epidemiology and International Health; Johns Hopkins University Bloomberg School of Public Health; Baltimore MD USA