1. Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan, S7N 5B4, Canada
2. Department of Biology, Memorial University of Newfoundland, 45 Arctic Avenue, St. John's, Newfoundland and Labrador, A1C 5S7, Canada
3. Fisheries, Forestry and Agriculture, Government of Newfoundland and Labrador, 192 Wheeler's Road, Corner Brook, P.O. Box 2006, Newfoundland and Labrador, A2H 0J1, Canada