TABLE 3.
Putative virulence genes among 63 multidrug-resistant E. coli isolates from community hospitals
| Category | Virulence gene | No. (column %) of isolates |
P valuea |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Total (n = 63) | ST131 (n = 39) | Non-ST131 (n = 24) | ST131 H30Rx (n = 27) | ST131 non-H30Rx (n = 12) | All non-H30Rx (n = 36) | ST131 vs non-ST131 | H30Rx vs all non-H30Rx | ||
| Adhesin | dra | 13 (21) | 12 (31) | 1 (4) | 8 (30) | 4 (33) | 5 (14) | 0.01 | |
| fim | 59 (94) | 39 (100) | 20 (83) | 27 (100) | 12 (100) | 32 (89) | 0.02 | ||
| nfaE | 13 (21) | 12 (31) | 1 (4) | 8 (30) | 4 (33) | 5 (14) | 0.01 | ||
| pap | 44 (70) | 37 (95) | 7 (29) | 27 (100) | 10 (83) | 17 (47) | <0.001 | <0.001 | |
| sfa | 44 (70) | 37 (95) | 7 (29) | 27 (100) | 10 (83) | 17 (47) | <0.001 | <0.001 | |
| yfcV | 45 (71) | 39 (100) | 6 (25) | 27 (100) | 12 (100) | 18 (50) | <0.001 | <0.001 | |
| Protectin | iss | 48 (76) | 38 (97) | 10 (42) | 27 (100) | 11 (92) | 21 (58) | <0.001 | <0.001 |
| kfiC | 12 (19) | 11 (28) | 1 (4) | 5 (19) | 6 (50) | 7 (19) | 0.02 | ||
| kps | 47 (75) | 38 (97) | 9 (38) | 27 (100) | 11 (92) | 20 (56) | <0.001 | <0.001 | |
| Siderophore | chu | 55 (87) | 38 (97) | 17 (71) | 26 (96) | 12 (100) | 29 (81) | 0.004 | |
| fyuA | 58 (92) | 39 (100) | 19 (79) | 27 (100) | 12 (100) | 31 (86) | 0.006 | ||
| iha | 39 (62) | 36 (92) | 3 (13) | 26 (96) | 10 (83) | 13 (36) | <0.001 | <0.001 | |
| irp | 58 (92) | 39 (100) | 19 (79) | 27 (100) | 12 (100) | 31 (86) | 0.006 | ||
| iuc | 47 (75) | 35 (90) | 12 (50) | 25 (93) | 10 (83) | 22 (61) | <0.001 | 0.007 | |
| iutA | 47 (75) | 35 (90) | 12 (50) | 25 (93) | 10 (83) | 22 (61) | <0.001 | 0.007 | |
| Toxin | sat | 38 (60) | 35 (90) | 3 (13) | 25 (93) | 10 (83) | 13 (36) | <0.001 | <0.001 |
| Miscellaneous | malX | 53 (84) | 39 (100) | 14 (58) | 27 (100) | 12 (100) | 26 (72) | <0.001 | 0.003 |
| ExPEC | NAb | 45 (71) | 37 (95) | 8 (33) | 27 (100) | 10 (83) | 18 (50) | <0.001 | <0.001 |
a
Only P values of <0.05 are shown.
b
NA, not applicable.