1. Firat University , Faculty of Veterinary Medicine, Department of Pathology , Elazig – Turkey
2. Inonu University , Faculty of Medicine, Department of Medical Microbiology , , Malatya , Turkey
3. Firat University , Faculty of Veterinary Medicine, Department of Microbiology , Elazig – Turkey
4. Ataturk University University , Faculty of Veterinary Medicine, Department of Virology , Erzurum – Turkey