Table 2. Prevalence of pathogenic variants among ESBL-producing E. coli.
| Pathogenic category | Genetic marker | Surface water* (n = 82) | Waste water* (n = 88) | Total* (n = 170) | Phylogenetic group/ESBL-genotype |
|---|---|---|---|---|---|
| EAEC | aggR | 5 (6.1%) | 2 (2.2%) | 7 (4.1%) | A0/CTX-M-15 (1) |
| A1/CTX-M-15 (2) | |||||
| A1/CTX-M-27 (1) | |||||
| D1/CTX-M-15 (1) | |||||
| D1/CTX-M-14 (1) | |||||
| D2/CTX-M-15 (1) | |||||
| EIEC | ipaH | 0 (0%) | 2 (2.3%) | 2 (1.2%) | B23/CTX-M-15 (1) |
| D2/CTX-M-15 (1) | |||||
| EPEC | eae | 0 (0%) | 3 (3.3%) | 3 (1.8%) | B23/CTX-M-15 (1) |
| B1/CTX-M-15 (2) | |||||
| ETEC | eltB or estA | 2 (2.4%) | 0 (0%) | 2 (1.2%) | A0/CTX-M-15 (2) |
| ExPEC | ≥3 markers | 5 (6.1%) | 10 (11.4%) | 15 (8.8%) | B23/CTX-M-1 (3) |
| B23/CTX-M-14 (1) | |||||
| D2/CTX-M-14 (2) | |||||
| A0/CTX-M-15 (1) | |||||
| B23/CTX-M-15 (6) | |||||
| D2/CTX-M-15 (2) | |||||
| STEC | stx1 or stx2 | 0 (0%) | 0 (0%) | 0 (0%) | — |
| Total | 12 (14.6%) | 17 (19.3%) | 29 (17.1%) |
*Indicated are the numbers and percentages of suspected pathogenic isolates, based on the presence of the indicated markers.