About the Authors

Firehiwot Mesfin

Contributed equally to this work with: Firehiwot Mesfin, Yemane Berhane, Alemayehu Worku

mfirehiwotm@gmail.com

Affiliation College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia

Yemane Berhane

Contributed equally to this work with: Firehiwot Mesfin, Yemane Berhane, Alemayehu Worku

Affiliation Addis Continental Institute of Public Health, Addis Ababa, Ethiopia

Alemayehu Worku

Contributed equally to this work with: Firehiwot Mesfin, Yemane Berhane, Alemayehu Worku

Affiliations Addis Continental Institute of Public Health, Addis Ababa, Ethiopia, School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FM YB AW. Performed the experiments: FM YB AW. Analyzed the data: FM YB AW. Contributed reagents/materials/analysis tools: FM YB AW. Wrote the paper: FM YB AW.