TABLE 2.
MICs of selected antibiotics for E. coli strains
| Strain | MIC (μg/ml)a
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PIP | CPD | CEF | CTX | CTX-CLAb | CAZ | CMZ | ATM | FEP | IPM | |
| KU6400 | >256 | >256 | >256 | 64 | 64 | 64 | 64 | 8 | 0.25 | 0.25 |
| ML4947(pKU601) | >256 | >256 | >256 | 256 | 256 | >256 | 256 | 64 | 1 | 0.5 |
| ML4953(pKU601) | >256 | >256 | >256 | 256 | 256 | >256 | 256 | 64 | 1 | 1 |
| ML4947(pKU611) | 64 | >256 | >256 | 16 | 16 | 8 | 16 | 2 | 0.25 | 0.25 |
| ML4947(pKU612) | 8 | 32 | 256 | 4 | 2 | 4 | 2 | 0.5 | <0.063 | 0.25 |
| ML4947 | 2 | 0.5 | 8 | <0.063 | <0.063 | 0.25 | 0.5 | <0.063 | <0.063 | <0.063 |
a
Antibiotics: PIP, piperacillin; CEF, cephalothin; CPD, cefpodoxime; CTX, cefotaxime; CLA, clavulanic acid; CAZ, ceftazidime; CMZ, cefmetazole; ATM, aztreonam; FEP, cefepime; IPM, imipenem.
b
MICs were determined in the presence of clavulanic acid (5 μg/ml).