Funding for this research was provided by:
Wellcome Trust (103602, 212176)
DELTAS Africa Initiative (DEL-15-003)
Received: 7 March 2020
Accepted: 12 June 2020
First Online: 17 June 2020
Ethics approval and consent to participate
: The community and health facility surveys were approved by the Kenya Medical Research Institute Scientific Ethics Review Unit (KEMRI/SERU/CGMR-C/106/3592) and the Oxford tropical research ethics committee (OxTREC Reference: 511-18). Hospital surveillance and KHDSS were approved by the Kenya Medical Research Institute Scientific Ethics Review Unit (KEMRI/SERU/SSC/1433) and (KEMRI/SERU/SSC/3057).
: Not applicable.
: The authors declare that they have no competing interests.