1. Washington Animal Disease Diagnostic Laboratory, Washington State University, Pullman, WA 99164
2. Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164
3. Veterinary Biologics Laboratory, National Veterinary Services Laboratories, VS, APHIS, USDA, PO Box 844, Ames, IA 50010
4. Gem Veterinary Clinic, 238 Main Street, Gooding, ID 83350