1. Zoonoses Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
2. Bacteriology, Immunology, and Mycology Department, Faculty of Veterinary Medicine, Benha University, Banha, Egypt
3. Bacteriology, Immunology, and Mycology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
4. Veterinary Hospital, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.