1. Department of Microbiology, Faculty of Medicine, Kafkas University, Kars, Turkey
2. Department of Virology, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
3. Department of Physiology, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey
4. Department of Physiology, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
5. Department of Histology & Embryology, Faculty of Medicine, Kafkas University, Kars, Turkey