1. Carlson College of Veterinary Medicine, Oregon State University, 700 SW 30th Street, Corvallis, Oregon 97331, USA
2. Oregon Department of Fish and Wildlife, Wildlife Health and Population Lab, 7118 NE Vandenberg Avenue, Adair Village, Oregon 97330, USA
3. Western University of Health Sciences, 200 Mullins Drive, Lebanon, Oregon 97355, USA
4. Oregon State University, Department of Fisheries, Wildlife and Conservation Sciences, 2820 SW Campus Way, Corvallis, Oregon 97331, USA