Affiliation: | * Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, C.P. 5000, St-Hyacinthe, Quebec, J2S 7C6, Canada † Canadian Bovine Mastitis Research Network, C.P. 5000, St-Hyacinthe, Quebec, J2S 7C6, Canada ‡ Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, 3300 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada § George Morris Centre, 225-150 Research Lane, Guelph, Ontario, N1G 4T2, Canada |