1. Wildlife Disease Laboratory, Rose Lake Wildlife Research Station, Michigan Department of Natural Resources, East Lansing, Michigan 48823, USA
2. Animal Health Diagnostic Laboratory and Department of Pathology, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan 48824, USA
3. Animal and Plant Health Inspection Service, Veterinary Services, United States Department of Agriculture, Holt, Michigan 48842, USA
4. Animal Industry Division, Michigan Department of Agriculture, Lansing, Michigan 48909, USA
5. State Community Health Laboratory, Michigan Department of Community Health, Lansing, Michigan 48909, USA
6. Atlanta Field Office, Wildlife Division, Michigan Department of Natural Resources, Atlanta, Michigan 49709, USA
7. Department of Wildlife and Fisheries, Mississippi State University, Mississippi State, Mississippi 39762, USA
8. National Veterinary Services Laboratories, United States Department of Agriculture, Ames, Iowa 50010, USA
9. Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan 48824, USA