1. Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
2. Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
3. Division of Vector-Borne Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado.
4. National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada.
5. Canadian Co-operative Wildlife Health Centre, Saskatoon, Saskatchewan, Canada.