1. Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
2. Antech Diagnostics, Los Angeles, CA
3. Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL
4. Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
5. Rollins Animal Disease Diagnostic Laboratory, Raleigh, NC
6. North Carolina Zoo, Asheboro, NC