1. School of Veterinary Medicine, Wollega University, Nekemte, Ethiopia
2. School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
3. Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
4. Department of Veterinary Parasitology, Faculty of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia