1. Department of Medicine, University of Cape Town, Cape Town, South Africa
2. Clinical Research Centre, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
3. Provincial Health Data Centre, Western Cape Department of Health and Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
4. Computational Biology, Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, South Africa
5. Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
6. Department of Health, Provincial Government of the Western Cape, Cape Town, South Africa