Received: 10 September 2020
Accepted: 11 January 2021
First Online: 21 January 2021
Ethics approval and consent to participate
: Ethical approval was obtained from Department of Microbial, Cellular and Molecular Biology and College of Natural and Computational Sciences Ethical Review Committee, Addis Ababa University (CNSDO/318/11/2019). After discussing the objective and method of the study, written consent was sought from zone health department office. Verbal consent was then obtained from the respective heads of district health offices and health centers before starting the data collection. All data was anonymized before use.
: Not applicable.
: The authors declare that they have no competing interests.