1. College of Agriculture, Animal Science Department, Oda Bultum University, P.O. Box 226, Chiro, Ethiopia
2. West Hararghe Zone, Chiro Wereda, Animal Health Worker, P.O. Box 226, Chiro, Ethiopia
3. Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, P.O. Box 34, Bishoftu, Ethiopia