Funding for this research was provided by:
Department for International Development (PO 5468)
Article History
Received: 15 December 2017
Accepted: 3 September 2018
First Online: 14 September 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the London School of Hygiene and Tropical Medicine (LSHTM) – LSHTM ethics ref.: 6542 and the University of the Witwatersrand’s Human Research Ethics Committee – Clearance certificate no. M131136. Signed consent was obtained for all interviews conducted.
: Not applicable.
: The authors declare that they have no competing interests.
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