Funding for this research was provided by:
National Institutes of Health (R01HL138728)
Fogarty-Fulbright Fellowship in Public Health (n/a)
Received: 17 January 2020
Accepted: 1 June 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: The study was approved by the Johns Hopkins Bloomberg School of Public Health Institutional Review Board (IRB Number 11353) and the Ethics Review Committee of the Makerere University School of Public Health (HDREC Protocol 544). All participants provided informed consent.
: Not Applicable.
: The authors declare that they have no competing interests.