1 BScHons (Microbiology), MBChB (Stellenbosch), Division of Medical Microbiology, National Health Laboratory Service, University of Cape Town and Groote Schuur Hospital, Main Road, Observatory, 7925, Cape Town, South Africa.
2 Faculty of Health Sciences, University of Cape Town, Main Road, Observatory, 7925, Cape Town, South Africa.
3 BScHons, MBBS (Lond), FCA (SA), Cert Crit Care (SA), Division of Critical Care, Department of Anaesthesia and Perioperative Medicine, University of Cape Town, Main Road, Observatory, 7925, Cape Town, South Africa.
4 MBChB (Wits); FCPath (Microbiol), Division of Medical Microbiology, National Health Laboratory Service, University of Cape Town and Groote Schuur Hospital, Main Road, Observatory, 7925, Cape Town, South Africa.