1. School of Public Health, College of Health and Medical Sciences, Haramaya University, PO Box 235, Harar, Ethiopia
2. Department of Medical Laboratory Sciences, College of Health and Medical Sciences, Haramaya University, PO Box 235, Harar, Ethiopia
3. School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, PO Box 235, Harar, Ethiopia