1. Michigan Department of Health and Human Services, 333 S. Grand Avenue, Lansing, MI 48933, USA
2. Michigan Department of Natural Resources, Wildlife Disease Laboratory, 4125 Beaumont Road, Room 250, Lansing, MI 48917, USA
3. Michigan Department of Agriculture and Rural Development, P.O. Box 30017, Lansing, MI 48909, USA
4. College of Veterinary Medicine, Veterinary Diagnostic Laboratory, Michigan State University, 4125 Beaumont Road, Lansing, MI 48910, USA
5. Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
6. Department of Entomology, Michigan State University, East Lansing, MI 48824, USA