1. Animal Diagnostic Laboratory, Orchard Road, Pennsylvania State University, University Park, Pennsylvania 16802, USA
2. Current address: Northeast Wildlife Disease Cooperative, 3373 Wrights Mountain Road, Bradford, Vermont 05033, USA
3. University of Pennsylvania School of Veterinary Medicine, 3800 Spruce Street, Philadelphia, Pennsylvania 19104, USA
4. Current address: 247 N. Shippen Street, Unit 111, Lancaster, Pennsylvania 17602, USA
5. Pennsylvania Game Commission, 2001 Elmerton Ave., Harrisburg, Pennsylvania 17110, USA