1. Alberta Provincial Laboratory for Public Health, Edmonton, Alberta, Canada
2. Division of Infectious Diseases, University of Alberta, Edmonton, Alberta, Canada
3. Department of Biology, Université de Saint-Boniface, Winnipeg, Manitoba, Canada
4. National Microbiology Laboratory, CSCHAH Site, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
5. Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada