1. Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2. Graduated Student of Microbiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3. Department of Venomous Animals and Toxins, Razi Vaccine and Serum Research Institute, Ahvaz Branch, Agriculture Research Education and Extension Organization (AREEO), Iran