Received: 2 November 2019
Accepted: 13 November 2020
First Online: 20 November 2020
Ethics approval and consent to participate
: Ethical clearance was obtained from the Amhara Public Health Institute. The study participants were also informed about the objectives of the study, privacy, and data protection and gave informed consent before being enrolled in the study.
: Not applicable.
: The authors declare that we have no competing interests.