Funding for this research was provided by:
Centers for Disease Control and Prevention (U01GH002143-01)
Received: 10 February 2022
Accepted: 25 July 2022
First Online: 14 September 2022
: This study was reviewed and approved by the Kenyatta National Hospital/University of Nairobi Ethical Review Committee [P71/102/2017], the Washington State University institutional review board [IRB No. 15897], and the US CDC institutional review board [# 7021]. All participants (those below 18 years were considered emancipated minors) provided informed consent before enrolment.
: Not applicable.
: The authors declare that they have no competing interests.