1. Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
2. Tshwane Academic Division, National Health Laboratory Service, Pretoria, South Africa
3. Department of Medical Microbiology, School of Public Health and Primary Care (CAPHRI), Maastricht University Medical Centre, Maastricht, The Netherlands
4. Anova Health Institute, Johannesburg, South Africa
5. EpiC Family Health International (FHI360), Pretoria, South Africa
6. Foundation for Professional Development, Research Unit, East London, South Africa