1 Division of Medical Virology, Faculty of Medicine and Health Sciences, University of Stellenbosch, National Health Laboratory Service (NHLS) Tygerberg, Cape Town 8000, South Africa. Electronic address: [email protected].
2 Division of Medical Virology, Faculty of Medicine and Health Sciences, University of Stellenbosch, National Health Laboratory Service (NHLS) Tygerberg, Cape Town 8000, South Africa.