<p><strong>*</strong>Ali M. Wolle1, G. W. Tsegaye2, E. Y. Abegaz3</p><p>*1Ethiopian Field Epidemiology training program, department of Epidemiology and Biostatistics, School of Public Health, Bahir Dar University, Bahir Dar, Ethiopia; email: alimahammed201@gmail.com, Telephone :+251933268955</p><p>2Department of Epidemiology and Biostatistics, School of Public Health, Bahir Dar University, Bahir Dar, Ethiopia; email: fwudie@gmail.com, Telephone :+251920054599</p><p>3Public health emergency management, South Wollo zone health department, Dessie, Ethiopia; email: eshetuyimam39@gmail.com, Telephone :+251975105599</p>