1. California Department of Fish and Game, Wildlife Investigations Laboratory, 1701 Nimbus Road, Suite D, Rancho Cordova, California 95670, USA
2. University of California, White Mountain Research Station, 3000 East Line Street, Bishop, California 93514, USA
3. Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, California 95616, USA
4. California Department of Fish and Game, 21091 Sioux Road, Apple Valley, California 92308, USA
5. University of California, California Veterinary Diagnostic Laboratory Service, 105 West Central Avenue, San Bernardino, California 92412, USA
6. United States Geological Survey, Biological Resources Division, National Wildlife Health Center, 6006 Schroeder Road, Madison, Wisconsin 53711, USA
7. California Department of Fish and Game, 407 West Line Street, Bishop, California 93514, USA
8. Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, Alaska 99775, USA; and