Womersley, Jacqueline S. https://orcid.org/0000-0001-9731-4505
Clauss, Lara B.
Varathan, Olivette
Engelbrecht, Susan
Hemmings, Sian M. J.
Seedat, Soraya
Spies, Georgina
Funding for this research was provided by:
Center for AIDS Research, University of California, San Diego (P30 AI036214)
South African National Research Foundation (Research Chairs Initiative)
South African Medical Research Council (MRC-RFA-FSP-01-2013/SHARED ROOTS)
National Health Laboratory Service (004_94657)
South African Medical Research Council (S004116)
Poliomyelitis Research Foundation (17/07)
Article History
Received: 16 April 2019
Accepted: 19 December 2019
First Online: 27 December 2019
Ethics approval and consent to participate
: This study was approved by the Health Research Ethics Committee at Stellenbosch University (N07/07/153) and was conducted according to the ethical guidelines and principles of the international Declaration of Helsinki. All participants and their primary guardians provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.