1. Department of Biological Sciences, Biological Sciences Building, University of Manitoba, 50 Sifton Road, Winnipeg, Manitoba R3T 2N2, Canada
2. Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4, Canada
3. Veterinary Diagnostic Services, Manitoba Agriculture, 545 University Crescent, Winnipeg, Manitoba R3T 5S6, Canada