Affiliation: | 1. Haramaya University, Faculty of Veterinary Medicine, P.O. Box 138, Dire Dawa, Ethiopia;2. Ministry of Agriculture and Rural Development, National Animal Health Diagnostic and Investigation Center, P.O. Box 04, Sebeta, Ethiopia;3. Addis Ababa University, Aklilu Lemma Institute of Pathobiology, P.O. Box 1176, Addis Ababa, Ethiopia |