Table 2.
Association between prevalence of virulence-associated genes and the presence of integrons in E. coli strains isolated from the Warta river water
| VF gene | Class 1 integron presence | P | |
|---|---|---|---|
| intI1-positive, % (n) | intI1-negative, % (n) | ||
| eae | (0) | (0) | – |
| bfpA | (0) | (0) | – |
| CVD432 | (0) | 1.0 (1) | 1.000 |
| LT | 2.1 (2) | (0) | 0.497 |
| ST | 17.7 (17) | 1.0 (1) | <0.001a |
| stx1 | 5.2 (5) | 4.2 (4) | 1.000 |
| stx2 | 3.1 (3) | 2.1 (2) | 1.000 |
| ipaH | 7.3 (7) | 13.6 (13) | 0.156 |
| fyuA | 50 (48) | 20.8 (20) | <0.001a |
| iutA | 37.5 (36) | 20.8 (20) | 0.011a |
| hlyA | 2.1 (2) | 1.0 (1) | 1.000 |
| papA | 7.3 (7) | 2.1 (2) | 0.169 |
| sfaS | 28.1 (27) | 12.5 (12) | 0.007a |
| cnf1 | 2.1 (2) | (0) | 0.497 |
| focG | 2.1 (2) | 3.8 (3) | 1.000 |
aSignificant P values (χ2 or Fisher’s exact test)