Received: 4 October 2019
Accepted: 1 July 2020
First Online: 6 August 2020
Ethics approval and consent to participate
: Written informed consent was obtained from all participants prior to the househfld interview and the extraction of dried blood spots for HIV and viral load testing. Ethics approval for data collection and use was obtained from the biomedical and ethics committee (BREC) of the University of KwaZulu-Natal (Durban, South Africa), BREC approval number BE290/16.
: Not applicable.
: The authors declare that they have no competing interests.