About the Authors

Yihun Mulugeta Alemu

yihun.mulugeta@yahoo.com

Affiliation School of Public Health, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia

Gashaw Andargie

Affiliation Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia

Ejigu Gebeye

Affiliation Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YMA GA EG. Performed the experiments: YMA GA EG. Analyzed the data: YMA GA EG. Contributed reagents/materials/analysis tools: YMA GA EG. Wrote the paper: YMA GA EG. Software installation: YMA.