1. Department of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece.
2. Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia.
3. Diagnostic Laboratory, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
4. Companion Animal Clinic, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.