Table 3.
Distribution of Virulence Genes Among E. coli Clinical Isolates Collected from Different Infections
| Virulence Genes | Samples | P-value | Total (n = 64) N (%)** | |||
|---|---|---|---|---|---|---|
| Urine (n=22) N (%)* | Stool (n=23) N (%)* | Blood (n=9) N (%)* | Wound Swabs (n=10) N (%) * | |||
| Colicin genes: | ||||||
| Col M | 4 (18.2) | 0 (0) | 0 (0) | 2 (20) | 0.109 | 5 (7.8) |
| Col B | 4 (18.2) | 0 (0) | 0 (0) | 1 (10) | 0.084 | 6 (9.3) |
| Col V | 4 (18.2) | 14 (60.8) | 5 (55.5) | 4 (40) | 0.027* | 27 (42.1) |
| Col E1 | 8 (36.4) | 18 (78.3) | 0 (0) | 3 (30) | 0.001* | 29 (45.3) |
| Col E2-E9 | 4 (18.2) | 15 (65.2) | 0 (0) | 1 (10) | <0.001* | 20 (31.25) |
| Col la-lb | 8 (36.4) | 19 (82.6) | 2 (22.2) | 5 (50) | 0.003* | 34 (53.1) |
| Other virulence genes | ||||||
| fimH | 20 (90.9) | 18 (78.3) | 6 (66.6) | 4 (40) | 0.019* | 48 (75) |
| HlyA | 18 (81.8) | 4 (17.4) | 5 (55.5) | 2 (20) | <0.001* | 29 (45.3) |
| traT | 13 (59.1) | 7 (30.4) | 5 (55.5) | 4 (40) | 0.237 | 29 (45.3) |
| CsgA | 20 (90.9) | 18 (78.3) | 8 (88.8) | 4 (40) | 0.011* | 50 (78.1) |
| Crl | 19 (86.4) | 17 (73.9) | 8 (88.8) | 5 (50) | 0.114 | 49 (76.5) |
| No virulence genes found in each isolate | ||||||
| 0 | 2 (9) | 3 (13) | 1 (11.1) | 3 (30) | 0.451 | 9 (14) |
| 1 | 0 (0) | 2 (8.6) | 2 (22.2) | 2 (20) | 0.147 | 6 (9.3) |
| 2 | 2 (9) | 3 (13) | 1 (11.1) | 2 (20) | 0.857 | 8 (12.5) |
| 3 | 10 (45.4) | 7 (30.4) | 2 (22.2) | 0 (0) | 0.069 | 19 (29.6) |
| 4 | 1 (4.5) | 1 (4.3) | 0 (0) | 0 (0) | 0.999 | 2 (3.1) |
| 5 | 1 (4.5) | 2 (8.6) | 0 (0) | 0 (0) | 0.999 | 3 (4.6) |
| 6 | 0 (0) | 0 (0) | 1 (11.1) | 0 (0) | 0.999 | 1 (1.5) |
| 7 | 1 (4.5) | 2 (8.6) | 2 (22.2) | 1 (10) | 0.499 | 6 (9.3) |
| 8 | 1 (4.5) | 1 (4.3) | 0 (0) | 0 (0) | 0.499 | 2 (3.1) |
Notes: *Percentages were correlated to the total number of E. coli isolated from each type of samples. **Percentages were correlated to the total number of E. coli isolates. P values are significant at <0.05.