Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1105080)
Received: 28 October 2020
Accepted: 15 February 2021
First Online: 25 February 2021
Ethics approval and consent to participate
: The study was conducted in accordance with the International Conference on Harmonisation, Good Clinical Practice and the Declaration of Helsinki 2008, and was approved by the Western Institutional Review Board in the state of Washington, USA; the College of Medicine Research and Ethics Committee, Blantyre, Malawi; and the Malawi Pharmacy, Medicines and Poisons Board. Written informed consent for study participation was obtained from the caregiver or legal guardian of each study participant.
: Not applicable.
: The authors declare that they have no competing interests.