Affiliation: | 1.Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran ;2.Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran ;3.Iranian Veterinary Organization, Tehran, Iran ;4.Department of Clinical Sciences, Faculty of Veterinary Medicine, Islamic Azad University, Karaj Branch, Alborz, Iran ; |