<ol><li>A. Tolera and L . Bogale. Haramaya University, college of health and medical science, school of public health, Harar</li><li>T . Diggafe. Minstry of health, EThiopia&nbsp;</li><li>Dr. R . Hanna, K . Etefa and B . Bejiga. Ethiopia Public Health Institute, EThiopia&nbsp;</li><li>A . Abdissa and A . Girma. East Hararghe zone health office, Harar&nbsp;</li></ol>