1. School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.
2. Animal Health Centre, British Columbia Ministry of Agriculture, Abbotsford, British Columbia, Canada.
3. Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado.
4. Zoonotic Diseases and Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada.
5. Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
6. British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada.
7. Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada.