Funding for this research was provided by:
National Institutes of Health (5R01HD084453-01A1)
Bill & Melinda Gates Foundation (INV-002967)
David and Lucile Packard Foundation (#2017-66705)
Received: 4 November 2020
Accepted: 23 February 2021
First Online: 9 March 2021
: Informed consent was obtained from all participants or parent/guardian for those under 18 years of age. Ethical approval was obtained from the Population Council institutional IRB before data collection. UC San Diego’s IRB approved further analysis under a David and Lucile Packard Foundation grant.
: Not applicable.
: The authors have no conflicts of interest to disclose.