1. Institute for Wildlife Studies, P.O. Box 1104, Arcata, California 95518, USA
2. Current address: E9731 Co. Hwy. P, Westby, Wisconsin 54667, USA
3. Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, 1 Shields Ave., University of California, Davis, California 95616, USA
4. Department of Pathology and Infectious Diseases, Royal Veterinary College, Hatfield, Herts AL97TA, UK
5. University of Illinois Zoological Pathology Program, LUMC Building 101, 2160 S. First Ave., Maywood, Illinois 60153, USA
6. Department of Population Medicine and Diagnostic Science, College of Veterinary Medicine, Cornell University, P.O. Box 786, Ithaca, New York 14853, USA
7. Rabies Laboratory, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, Georgia 30333, USA
8. Oklahoma Animal Disease Diagnostic Lab, Oklahoma State University, P.O. Box 7001, Stillwater, Oklahoma 740078, USA