1. Centre for Respiratory Diseases and Meningitis National Institute for Communicable Diseases of the National Health Laboratory Service Johannesburg South Africa
2. School of Public Health, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
3. Influenza Division Centers for Disease Control and Prevention Atlanta Georgia USA
4. Influenza Program Centers for Disease Control and Prevention Pretoria South Africa
5. United States Public Health Service Rockville Maryland USA
6. Perinatal HIV Research Unit Medical Research Council (MRC) Soweto Matlosana Collaborating Centre for HIV/AIDS and Tuberculosis Tygerberg South Africa
7. Center for Tuberculosis Research, Division of Infectious Diseases, School of Medicine Johns Hopkins University Baltimore Maryland USA
8. Department of Science and Technology/National Research Foundation Centre of Excellence for Biomedical Tuberculosis Research University of the Witwatersrand Johannesburg South Africa
9. MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
10. Division of Medical Virology National Health Laboratory Service, Charlotte Maxeke Johannesburg Academic Hospital Johannesburg South Africa
11. School of Pathology, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
12. Climatology Research Group, Unit for Environmental Science and Management, School of Geo and Spatial Science North‐West University Potchefstroom South Africa
13. Environment and Health Research Unit South African Medical Research Council Johannesburg South Africa
14. Environmental Health Department, Faculty of Health Sciences University of Johannesburg Johannesburg South Africa
15. MassGenics Duluth Georgia USA