Table 2 The origins and virulence factors associated with ehxA groups in 138 non-O157 STEC strains.
ehxA groups | No. of strains | No. of strains with virulence factor (s) from different sources | |||||
|---|---|---|---|---|---|---|---|
Animal | Human | Food | |||||
stx | stx + eae | stx | stx + eae | stx | stx + eae | ||
I | 121 | 102 | 2 | 1 | 0 | 16 | 0 |
II | 16 | 2 | 1 | 1 | 8 | 0 | 4 |
III | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
Total | 138 | 105 | 3 | 2 | 8 | 16 | 4 |
