1. Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada
2. Department of Chemistry, University of Prince Edward Island, Charlottetown, Canada
3. Bogotá. Faculty of Veterinary Medicine and Zootechnic. Animal Health Department; Infectiology and Immunology Research Centre (CI3V), National University of Colombia, Bogotá, Colombia
4. Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Canada