1. University of Georgia, College of Veterinary Medicine, Department of Pathology, 501 D. W. Brooks Drive, Athens, Georgia 30602, USA
2. Southeastern Cooperative Wildlife Disease Study, University of Georgia, 589 D. W. Brooks Drive, Athens, Georgia 30602, USA
3. Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, New York 14853, USA
4. Pennsylvania Game Commission, Animal Diagnostic Laboratory, Pennsylvania State University, Wiley Lane, University Park, Pennsylvania 16802, USA