Table 3.
Characteristics of the O25b, fimH30 and ESBL genotypes in ESBL-producing E. coli used in this study
| Sequence type | ST131 clade | ST131 subclade | O serotypes and fimH types | ESBL gene |
|---|---|---|---|---|
| ST131 (97)a | C (85) | C2 (34) | O25b, fimH30Rx (34) | CTX-M-1 group [M-15] (33), M-1 [M-15] + M-9 group (1) |
| C1-M27 (33) |
O25b, fimH30 non-Rx (30) O25b and O16 negative, fimH30 non-Rx (3) |
CTX-M-9 group (29), M-1 group [M-15] (1) CTX-M-9 group (3) |
||
| C1-nM27 (18) |
O25b, fimH30 non-Rx (16) O25b and O16 negative, fimH30 non-Rx (2) |
CTX-M-9 group (10), M-2 group (5), M-1 group [M-15] (1) CTX-M-9 group (2) |
||
| A (7) | — |
O16, fimH30 negative (5) O25b, fimH30 negative (1) O25b and O16 negative, fimH30 negative (1) |
CTX-M-9 group (4), M-1 group [non-M-15] (1) CTX-M-9 group (1) CTX-M-9 group (1) |
|
| B (5) | — | O25b, fimH30 negative (5) | CTX-M-2 group (2), M-1 group [non-M-15] (2), SHV-12 (1) | |
| Non-ST131 (100) | — | — | — | CTX-M-9 group (45), M-1 group (39), M-2 group (11), SHV-12 (5), SHV-2 (1) |
aNumbers in parentheses indicate the number of samples.