Stellenbosch University, Stellenbosch University, Stellenbosch University, Stellenbosch University, Stellenbosch University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Right to Care, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, University of the Witwatersrand - Department of Clinical Microbiology and Infectious Diseases, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases and Stellenbosch University