TABLE 7.
Susceptibility data determined by Etest
| Isolate | bla gene | MIC (μg/ml)a
|
Interpretationb | |||
|---|---|---|---|---|---|---|
| CTX | CTX + CLA | CAZ | CAZ + CLA | |||
| GC 8130 | SHV-1 | <0.25 | 0.023 | <0.5 | 0.125 | No |
| GC 7668 | SHV-48 | <0.25 | 0.023 | <0.5 | 0.125 | No |
| GC 8128 | SHV-105 | >16 | 0.032 | >32 | 0.25 | Yes |
| GC 8133 | TEM-155 | 2 | 0.023 | >32 | 0.5 | Yes |
| ATCC 25922 | None | <0.25 | 0.047 | <0.5 | 0.125 | No |
| DH5α | None | <0.25 | 0.023 | <0.5 | 0.094 | No |
a
Antibiotic abbreviations: CTX, cefotaxime; CLA, clavulanic acid; CAZ, ceftazidime.
b
Determination of the presence of an ESBL by Etest, according to the instructions of the manufacturer.