Funding for this research was provided by:
Received: 13 May 2021
Accepted: 1 February 2022
First Online: 15 February 2022
: The study was approved by the University of the Witwatersrand Human Research Ethics Committee, the Johns Hopkins University School of Medicine Institutional Review Board, and research committees of Ekurhuleni District, South Africa: approval number 160101. All eligible individuals underwent a structured informed consent procedure where the researcher introduced themselves, gave full information about the study, and informed the participants of their rights to agree or refuse to participate. Signed informed consent was required for participation.
: Not applicable.
: The authors declare that they have no competing interests.