Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1132551)
Text and Data Mining valid from 2019-12-01
Received: 19 July 2019
Accepted: 11 December 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethiopian Public Health Institute (SERO-012-8-2016; Version 001), London School of Hygiene and Tropical Medicine (LSHTM Ethic Ref: 11235), and from the IRB office of College of Health Sciences of Mekelle University in Ethiopia (ERC 1434/2018). Written consent and assent were also obtained from the participants.
: Not applicable.
: We, the authors, declare that we don’t have any competing interests.