1. School of Population and Public Health, University of British Columbia, 2206 E Mall, Vancouver, British Columbia V6T 1Z9, Canada
2. Animal Health Centre, British Columbia Ministry of Agriculture, 1767 Angus Campbell Road, Abbotsford, British Columbia V3G 2M3, Canada
3. Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, 160 Research Lane, Guelph, Ontario N1G 5B2, Canada
4. Department of Pathobiology and Canadian Wildlife Health Cooperative, University of Guelph, 50 Stone Road, Guelph, Ontario N1G 2W1, Canada
5. British Columbia Centre for Disease Control, 655 W 12th Avenue, Vancouver, British Columbia V5Z 4R4, Canada
6. Department of Pathology and Laboratory Medicine, University of British Columbia, 2211 Westbrook Mall, Vancouver, British Columbia V6T 2B5, Canada