1. Faculty of Veterinary Medicine, Departments of Veterinary Biomedicine, University of Montreal, 3200 rue Sicotte, Saint-Hyacinthe, Quebec, J2S 2M2, Canada
2. Faculty of Veterinary Medicine, Departments of Pathology and Microbiology, University of Montreal, Saint-Hyacinthe, Quebec, Canada
3. Faculty of Veterinary Medicine, Departments of Veterinary Clinical Sciences, University of Montreal, Saint-Hyacinthe, Quebec, Canada
4. Sainte-Justine University Hospital Research Center, Montreal, Canada