1. Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
2. Department of Clinical Sciences, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran
3. Department of Clinical Science, Shahrekord University, Shahrekord 9R3G+3C3, Iran
4. Division of Biotechnology, Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz 71557-13876, Iran
5. Department of Clinical Science, Karaj Branch, Islamic Azad University, Karaj VX3M+JQQ, Iran