1. Canadian Research Institute for Food Safety, University of Guelph, Guelph, Ontario, Canada
2. Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
3. Public Health Agency of Canada, Laboratory for Foodborne Zoonoses, Guelph, Ontario, Canada
4. Agriculture and Agri-Food Canada, Guelph Food Research Centre, Guelph, Ontario, Canada
5. Department of Microbiology-Infectiology and Immunology, Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada