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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 |
