About the Authors

Henock Gebremedhin Yebyo

henokyebyo@yahoo.com

Affiliation Department of Public Health, College of Health Sciences, Mekelle University, Mekelle, Ethiopia

Carl Kendall

Affiliation Department of Global Community Health and Behavioral Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America

Daniel Nigusse

Affiliation Department of Public Health, College of Health Sciences, Mekelle University, Mekelle, Ethiopia

Wuleta Lemma

Affiliation Department of Global Community Health and Behavioral Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HGY. Performed the experiments: HGY WL DN CK. Analyzed the data: HGY DN. Contributed reagents/materials/analysis tools: HGY WL DN CK. Wrote the paper: HGY.