Received: 16 March 2022
Accepted: 21 October 2022
First Online: 2 November 2022
: The study protocol was approved by the “University of the Witwatersrand Human Research Ethics Committee (ref. M141159), the Harvard T.H. Chan School of Public Health, Office of Human Research Administration (ref. C13–1608–02), and the Mpumalanga Provincial Research and Ethics Committee.” Participants provided written informed consent. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: “The authors declare no conflict of interest.”