Affiliation: | 1. Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada.; 2. FoodNet Canada, Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Ottawa, Ontario, Canada.; 3. Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario, Canada.; University of Coimbra, PORTUGAL, |