Funding for this research was provided by:
Beit Trust (n/a)
Received: 5 December 2018
Accepted: 18 February 2019
First Online: 4 March 2019
Ethics approval and consent to participate
: The Medical Research Council of Zimbabwe (MRCZ) and the London School of Hygiene & Tropical Medicine (LSHTM) granted ethical approval (ref:11132 /RR/4725). The caregiver provided informed written consent. Transport costs were reimbursed.
: Not applicable
: The authors declare that they have no competing interests.
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