Funding for this research was provided by:
Oak Foundation (OUSA-18-026)
Svenska Postkodstiftelsen (17A434)
Received: 13 February 2020
Accepted: 15 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The University of New South Wales (HC180126) granted ethics approval for this study in May 2018 and the Kenya Medical Research Institute granted ethics approval for the Kenya study site in April 2019. Verbal informed consent was obtained from all adult research participants. Among adolescent research participants (aged 15–17), verbal assent was obtained as well as verbal consent from parents or guardians.
: Not applicable.
: The authors declare that they have no competing interests.