1. University of Wyoming, Wyoming State Veterinary Laboratory, 1174 Snowy Range Road, Laramie, WY 82070, USA
2. Wyoming Game and Fish Department, Wyoming State Veterinary Laboratory, 1174 Snowy Range Road, Laramie, WY 82070, USA
3. Colorado Division of Parks and Wildlife, Wildlife Health Program, 4330 Laporte Ave, Fort Collins, Colorado 80521, USA
4. California Animal Health and Food Safety Laboratory, School of Veterinary Medicine, 620 West Health Science Dr., 620 West Health Science Dr, Davis, CA 95616, USA