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MICs of β-lactams for the E. coli strains used in this study
| β-Lactama | MIC (μg/ml)
|
|||
|---|---|---|---|---|
| Ec1499S | Ec1484R | Tc1484 | K12 | |
| Ampicillin | 8 | >512 | >512 | 8 |
| Ampicillin + CLA | 4 | >512 | >512 | 4 |
| Ticarcillin | 4 | >512 | >512 | 2 |
| Ticarcillin + CLA | 4 | 512 | >512 | 2 |
| Cephalothin | 8 | 8 | 8 | 8 |
| Cefoxitin | 4 | 4 | 2 | 2 |
| Ceftriaxone | 0.05 | 0.1 | 0.05 | 0.05 |
| Cefotaxime | 0.05 | 0.5 | 0.2 | 0.02 |
| Ceftazidime | 0.2 | 0.2 | 0.1 | 0.1 |
| Cefepime | 0.05 | 4 | 2 | 0.02 |
| Cefpirome | 0.02 | 0.2 | 0.5 | 0.01 |
CLA, clavulanic acid at a fixed concentration of 2 μg/ml.
