1 Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403 1st Avenue South, Lethbridge, AB, T1J 4P4, Canada.
2 Alberta Agriculture and Forestry, 100, 5401 1st Avenue South, Lethbridge, AB, T1J 4V6, Canada.
3 Canadian Food Inspection Agency, National Center for Animal Disease, Lethbridge Laboratory, Township Rd 9-1, Lethbridge, AB, T1J3Z4, Canada.
4 National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada.
5 Feedlot Health Management Services, Okotoks, AB, Canada.
6 Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, 6000C and E Trail, Lacombe, AB, T4L 1W1, Canada.
7 Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, Canada.
8 Calgary Laboratory Services (CLS), Alberta Health Services, 3535 Research Rd NW, Calgary, AB, T2L 2K8, Canada.
9 Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403 1st Avenue South, Lethbridge, AB, T1J 4P4, Canada. tim.mcallister@canada.ca.