Table 1.
Characterization of the seven fecal strains of E. coli ST131
| Strain/ FimH type | Susceptibility | β-lactamase | Allele typea(amino acid substitution) | Flag-2 | Phi3 | GI-PheV | Subclade | IncF plasmid replicon | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AMX | AMC | CIP | GEN | AMK | SXT | FOS | gyrA | parC | parE | |||||||
| S250/H22 | S | S | S | S | S | S | S | − | 1a | 1 | NA (I529L) | − | − | − | B1 | F89:A-:B62 |
| 208/H22 | S | S | S | S | S | S | S | − | 1a | 1 | NA (I529L) | + | − | − | B2 | − |
| 196/H22 | R | S | S | S | S | R | S | TEM-1 | 1a | 1 | NA (I529L) | + | − | + | B4 | F24:A-:B6 |
| 187/H30 | R | S | R | S | S | S | S | TEM-1 | 1AB (S83 L/D87N) | 1aAB (S80I/E84V) | NA (I529L) | + | + | + | C1 | F1:A2:B20 |
| 183/H30 | R | S | R | S | S | S | S | TEM-1 | 1AB (S83 L/D87N) | 1aAB (S80I/E84V) | NA (I529L) | + | + | + | C1 | F1:A2:B20 |
| 39/H30 | R | S | R | S | S | S | S | TEM-1 | 1AB (S83 L/D87N) | 1aAB (S80I/E84V) | NA (I529L) | + | + | + | C1 | F1:A2:B20 |
| 02/H30 | R | S | R | S | S | S | S | TEM-1 | 1AB (S83 L/D87N) | 1aAB (S80I/E84V) | NA (I529L) | + | + | + | C1 | F1:A2:B20 |
aaccording to reference [3], AMX amoxicillin, AMC amoxicillin + clavulanic acid, CIP ciprofloxacin, GEN gentamicin, AMK amikacin, SXT cotrimoxazole, FOS fosfomycin, R resistant, S susceptible, −: absence, +: presence, NA not available