1. Bacteriology, Mycology and Immunology Department Faculty of Veterinary Medicine University of Sadat city Sadat Egypt
2. Hygiene and Preventive Medicine (Zoonoses) Department Faculty of Veterinary Medicine Kafrelsheikh University Kafrelsheikh Egypt
3. Veterinary Hospital Faculty of Veterinary Medicine Zagazig University Zagazig Egypt
4. Animal Medicine and Infectious Diseases Department Faculty of Veterinary Medicine University of Sadat city Sadat Egypt