Funding for this research was provided by:
Wellcome Trust /SACIDS RVF PhD fellowship (WT087546MA)
Received: 8 April 2020
Accepted: 14 July 2020
First Online: 28 July 2020
Ethics approval and consent to participate
: The Ethics Committee from the Faculty of Medicine of Eduardo Mondlane University approved the study (Ref #: CIBS FM&HCM/15/2018). All head of the household or properties owners provided written informed consent prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.