Funding for this research was provided by:
Carnegie Corporation of New York (B 8606.R02)
Received: 18 March 2020
Accepted: 11 June 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Human Research Ethics Committee (HREC) of University of the Witwatersrand (M180465) and the College of Medicine Research and Ethics Committee (COMREC)—(P.04/18/2389) in Malawi. We upheld the ethical standards of the national and institutional research committees, including the 1964 Helsinki Declaration and its amendments. We obtained informed consent from all participants to collect their data and to use it in publications; all participants were free to choose whether to participate or not, and were able to withdraw at any time. All identifying information was removed from the analysis and all write-ups.
: The authors declare that they have no conflict of interest.