1. Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan;
2. Department of Pathology, Faculty of Veterinary Sciences, University of Agriculture Faisalabad, Pakistan;
3. Department of Clinical Medicine and Surgery, Faculty of Veterinary Sciences, University of Agriculture Faisalabad, Pakistan;
4. Department of Animal Health, Faculty of Animal Husbandry and Veterinary Sciences, University of Agriculture Peshawar, Pakistan