Funding for this research was provided by:
Kenya Medical Research Institute (KEMRI/IRG/002/1)
Received: 25 May 2020
Accepted: 21 April 2021
First Online: 3 May 2021
: Approval for this study was sought from the Kenya Medical Research Institute (KEMRI) Scientific and Ethics Review Unit (SERU), approval number KEMRI/SERU/CTDMR/037/3374 (Additional file InternalRef removed). Written informed consent was obtained from the household heads/spouse.
: Not applicable.
: The authors declare that they have no competing interests.