Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1179331)
Instituto Carlos Slim de la Salud
Global Fund to Fight AIDS, Tuberculosis and Malaria (QRA-M-IDB GA No.1693)
Received: 6 October 2020
Accepted: 11 February 2021
First Online: 30 April 2021
Ethics approval and consent to participate
: The Institutional Review Board of the University of Washington, data collection agencies (as required), and Ministries of Health in each country approved the study. Informed consent was also obtained from participants in each health facility.
: Not applicable.
: The authors declare that they have no competing interests.