Funding for this research was provided by:
South African Medical Research Council (National Health Scholars Programme, Self-Initiated Research Grant)
Harry Crossley Foundation (SU-PT-15/10-000005, SU-PT-16/10- 000057)
Received: 1 November 2019
Accepted: 15 July 2020
First Online: 24 July 2020
Ethics approval and consent to participate
: The research complied with the Helsinki Declaration and ethical approval was granted by the Stellenbosch University Human Research Ethics Committee (N15/05/043). All participants provided written informed consent (including HIV testing consent) and pre- and post-test counselling was offered where needed.
: Not applicable.
: KB and QL confirm that they have no conflicts of interest related to this manuscript. JC is a paid consultant to Noraxon USA Inc; however, the present study was conducted entirely independent from Noraxon as part of a PhD project by KB. Noraxon did not provide any funding, incentives, or services for any aspect of this study; nor did the company play any role in the study design, data collection, analysis and interpretation; in the writing of the manuscript; or in the decision to submit the manuscript for publication.