Table 1 Number of faecal samples from which verotoxin-positive O157:H7 was isolated from a total of 3071 samples tested, and their corresponding virulence genes as determined by PCR.
From: Verotoxinogenic Escherichia coli(VTEC) O157:H7 – A Nationwide Swedish Survey of Bovine Faeces
Number of isolates | % of total number of sampled animals | vtx 1 | vtx 2 | eaeA | EHEC hlyA | fliC |
|---|---|---|---|---|---|---|
1 | 0.03 | + | - | + | + | + |
21 | 0.68 | - | + | + | + | + |
15 | 0.49 | + | + | + | + | + |
37 | 1.2 |