1. Departments of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
2. Athens Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
3. Idexx Laboratories, Westbrook, ME, USA
4. Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Starkville, MS, USA
5. Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA