1. Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, Québec, Canada
2. Laboratoire de Santé Publique du Québec, Institut National de Santé Publique du Québec, Sainte-Anne-de-Bellevue, Québec, Canada
3. Department of Food Sciences and Nutrition, Université Laval, Québec City, Québec, Canada
4. Division of Infectious Diseases and Clinical Microbiology, Department of Medicine, Maisonneuve-Rosemont Hospital, Montréal, Québec, Canada