Funding for this research was provided by:
International AIDS Vaccine Initiative
Received: 6 February 2020
Accepted: 10 June 2020
First Online: 15 June 2020
Ethics approval and consent to participate
: The study protocol was approved for implementation by KEMRI’s Scientific and Ethics Review Unit in Kenya (SERU#3593), Uganda Virus Research Institute Ethics Committee (UVRI-REC#605) and National Council for Science and Technology (SS#4470) in Uganda and, the National Health Research Review Sub-Committee (NatHREC) in Tanzania (NIMR#2654). All participants provided written informed consent before being recruited into the study.
: Not applicable.
: The authors declare that they have no competing interests.