1. Addis Ababa University College of Veterinary Medicine, Department of Veterinary Microbiology, Immunology and Public Health, Bishoftu, Ethiopia
2. College of Agriculture and Natural Resources, Gambella University, Gambella, Ethiopia
3. International Livestock Research Institute, Addis Ababa, Ethiopia
4. Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
5. College of Health Sciences, School of Medicine, Department of Microbiology, Immunology & Parasitology, Addis Ababa University, Addis Ababa, Ethiopia