About the Authors

Ayalu A. Reda

ayaluaklilu@yahoo.com

Affiliation Department of Public Health, College of Health Sciences, Haramaya University, Harar, Ethiopia

Shiferaw Fisseha

Affiliation Environmental Health Section, East Hararghe Zone Health Bureau, Harar, Ethiopia

Bezatu Mengistie

Affiliation Department of Environmental Health Science, College of Health Sciences, Haramaya University, Harar, Ethiopia

Jean-Michel Vandeweerd

Affiliation University of Namur, FUNDP, Namur, Belgium

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AAR SF BM JMV. Performed the experiments: AAR SF BM JMV. Analyzed the data: AAR SF BM JMV. Contributed reagents/materials/analysis tools: AAR SF BM JMV. Wrote the paper: AAR SF BM JMV.