1. Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
2. National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Manitoba, Canada
3. Ontario Veterinary College, Centre for Public Health and Zoonoses, University of Guelph, Ontario, Guelph, Canada
4. Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada