TABLE 3.
In vitro susceptibilities of the three E. coli clones EC-IS1, EC-IS2, and EC-IS3
| Antibiotica | MIC (μg/ml)
|
||
|---|---|---|---|
| EC-IS1 | EC-IS2 | EC-IS3 | |
| AMP | ≥32 | ≥32 | 8 |
| AMX + CLA | ≥32 | ≥32 | 0.25 |
| CFZ | ≥32 | ≥32 | 8 |
| FOX | ≥32 | ≥32 | 8 |
| CFX | 32 | ≥64 | 0.5 |
| ATM | 1 | ≥64 | <0.25 |
| CTR | 0.5 | 8 | 1 |
| CTR + CLA | 0.5 | 4 | 1 |
| CAZ | 2 | ≥32 | <0.25 |
| CAZ + CLA | 1 | ≥32 | <0.25 |
| CTX | 1 | ≥64 | <0.25 |
| CTX + CLA | 0.25 | 32 | <0.25 |
| IPM | 0.5 | 1 | 0.5 |
a
AMP, ampicillin; ATM, aztreonam; CAZ, ceftazidime; CTX, cefotaxime; CTR, ceftriaxone; FOX, cefoxitin; AMX, amoxicillin; CFZ, cefazolin; CFX, cefixime; AMK, amikacin; IPM, imipenem; CLA, clavulanic acid at a fixed concentration 4 μg/ml when tested with ceftriaxone, ceftazidime, and cefotaxime and at ratio of 2:1 when tested with amoxicillin.