1. Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
2. Department of Internal Medicine, Infectious Diseases and Fish Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Aldakahlia, Egypt
3. Department of Bacteriology, Veterinary Serum and Vaccine Research Institute, Ministry of Agriculture, Cairo, Egypt
4. Bacteriology, Al Ahsa Veterinary Diagnostic Laboratory, Alhofof, Al-ahsa, Saudi Arabia
5. Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Sharkia, Egypt
6. Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada
7. Department of Medicine and Infectious Diseases, Faulty of Veterinary Medicine, Cairo University, Cairo, Egypt
8. Department of Biomedical Sciences, King Faisal University, Al-Ahsa, Saudi Arabia