1. Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, PO Box 64-7040, Pullman, Washington 99164, USA
2. Washington Animal Disease Diagnostic Laboratory, Washington State University, 1940 SE Olympia Ave., Pullman, Washington 99164, USA
3. Washington Department of Fish and Wildlife, PO Box 43141, Olympia, Washington 98504, USA
4. Washington Department of Fish and Wildlife, 2315 N Discovery Place, Spokane Valley, Washington 99216, USA
5. Wildlife Health and Population Laboratory, Oregon Department of Fish and Wildlife, 7118 NE Vandenberg Ave., Corvallis, Oregon 97330, USA
6. Wildlife Health Laboratory, Idaho Department of Fish and Game, 1820 S Trout Rd., Eagle, Idaho 83616, USA
7. Colorado State University Diagnostic Medicine Center, 1644 Campus Delivery, Fort Collins, Colorado 80523, USA
8. Oregon Veterinary Diagnostic Laboratory, Magruder Hall Room 134, 700 SW 30th St., Corvallis, Oregon 97331, USA
9. Wildlife Health Laboratory, California Department of Fish and Wildlife, 1701 Nimbus Rd., Suite D, Rancho Cordova, California 95670, USA