1. Faculty of Veterinary Medicine Department of Food Hygiene and Control Benha University Tukh, Qalyubia Egypt
2. Food Hygiene Department Animal Health Research Institute (Benha Branch) ARC Benha, Qalyubia Egypt
3. Faculty of Veterinary Medicine Department of Pharmacology Benha University Tukh, Qalyubia Egypt
4. Faculty of Veterinary Medicine Avian and Rabbit Diseases Department Benha University Tukh, Qalyubia Egypt
5. Faculty of Medicine Microbiology and Immunology Department Benha University Benha, Qalyubia Egypt
6. Faculty of Medicine Department of Clinical Pathology Cairo University Cairo Egypt
7. Laboratory Unit Benha Fever Hospital Benha, Qalyubia Egypt
8. Faculty of Veterinary Medicine Hygiene and Zoonoses Department Mansoura University Mansoura Egypt