1. Department of Molecular Medicine and Haematology; Faculty of Health Science, School of Pathology, University of the Witwatersrand; Johannesburg South Africa
2. Department of Biomedical Sciences; University of Antwerp, Antwerp, Belgium and Laboratory of Immunology, Department of Biomedical Sciences, Institute of Tropical Medicine; Antwerp Belgium
3. Department of Research and Development; Faculty of Medicine Siriraj Hospital, Mahidol University; Bangkok Thailand; Center for Emerging and Neglected Infectious Diseases, Mahidol University, Nakhon Pathom, Thailand
4. Department of Molecular Medicine and Haematology; The National Health Laboratory Service; Johannesburg South Africa