1. 1Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary AB, Canada
2. 2Canadian Bovine Mastitis and Milk Quality Research Network, St-Hyacinthe, QC, Canada
3. 3Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe QC, Canada
4. 4Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, 3200 Rue Sicotte, St-Hyacinthe, Québec, Canada
5. 5Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, Canada