Funding for this research was provided by:
Received: 22 May 2020
Accepted: 22 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: Ethics approval was obtained from the Benishangul-Gumuz Regional Ethical Review Board in Ethiopia and the ethics committee of the London School of Hygiene & Tropical Medicine.All participants completed a detailed informed consent procedure and provided written consent before being enrolled in the study.
: Not applicable.
: The authors declare that they have no competing interests.