1. Wyoming State Veterinary Laboratory, Department of Veterinary Sciences, University of Wyoming,1174 Snowy Range Road, Laramie, Wyoming 82070, USA
2. Wyoming Game and Fish Department, 1212 S Adams Street, Laramie, Wyoming 82070, USA
3. Wyoming Game and Fish, Wyoming State Veterinary Laboratory, 1174 Snowy Range Road, Laramie, Wyoming 82070, USA