Patrick Piotie | University of Pretoria, School of Health Systems &amp;amp; Public Health, Pretoria, South Africa | patrick.ngassapiotie@up.ac.za
Innocent Maposa | University of Witwatersrand, School of Public Health, Parktown, Johannesburg | innocent.maposa@wits.ac.za
Sandhya Singh | National Department of Health, Non-Communicable Disease Directorate, Pretoria | sandhya.singh@health.gov.za
Lazarus Kuonza | South African Field Epidemiology Training Program, National Institute for Communicable Disease a division of the National Health Laboratory Service, Sandringham, Johannesburg | lazarusk@nicd.ac.za
Alex de Voux | Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa | alex.devoux@uct.ac.za
