1. Division of Epidemiology & Biostatistics; Centre for Infectious Disease Epidemiology & Research; School of Public Health & Family Medicine; University of Cape Town; 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. Vanderbilt Institute for Global Health; Vanderbilt University; Nashville TN USA
4. Department of Medicine; Division of Infectious Diseases; Vanderbilt University; Nashville TN USA
5. ICAP; Columbia University; Mailman School of Public Health; New York NY USA
6. Desmond Tutu HIV Centre; Institute of Infectious Disease and Molecular Medicine and Department of Medicine; University of Cape Town; Cape Town South Africa
7. College of Physicians & Surgeons; Columbia University; New York NY USA