Tebogo Matjokotja | Gauteng Provincial Department of Health, Public Health Directorate, Johannesburg, South Africa | Tebogo.Matjokotja@gauteng.gov.za 
Mzimasi Neti | Gauteng Provincial Department of Health, Public Health Directorate, Johannesburg, South Africa | mzineti@gmail.com 
Nqobile Ngoma | South African Field Epidemiology Training Program, National Institute for Communicable Disease a division of the National Health Laboratory Service, Sandringham, Johannesburg | NqobileN@nicd.ac.za 
Ntsieni Ramalwa-Sekhwama | World Health Organisation, Gauteng Province, South Africa | ramalwasekhwaman@who.int 
Phuti Sekwadi | Centre for Enteric Diseases; National Institute for Communicable Diseases a division of National Health Laboratory Services; Johannesburg, South Africa | phutis@nicd.ac.za 
Juno Thomas | Centre for Enteric Diseases; National Institute for Communicable Diseases a division of National Health Laboratory Services; Johannesburg, South Africa | junot@nicd.ac.za 
Linda Erasmus | Centre for Enteric Diseases; National Institute for Communicable Diseases a division of National Health Laboratory Services; Johannesburg, South Africa | lindae@nicd.ac.za 
Refilwe Mokgetle | Gauteng Provincial Department of Health, Public Health Directorate, Johannesburg, South Africa | Refilwe.Mokgetle@gauteng.gov.za