Table 1. MICs of ß-lactams for E. coli clinical isolate Gue, E. coli J53 pGUE-NDM and E. coli J53 reference strains.
β-lactams | MIC (µg/ml) | ||
E. coli isolate GUE | E. coli J53 pGUE-NDM | E. coli J53 | |
Amoxicillin | >256 | >256 | 4 |
Amoxicillin + CLAa | 256 | >256 | 4 |
Ticarcillin | >256 | >256 | 2 |
Ticarcillin + CLAa | 256 | 256 | 2 |
Cephalothin | >256 | >256 | 4 |
Cefotaxime | 128 | 128 | 0.06 |
Ceftazidime | >256 | >256 | 0.06 |
Cefepime | 32 | 32 | 0.03 |
Aztreonam | 0.125 | 0.06 | 0.06 |
Meropenem | 2 | 0.75 | 0.03 |
Ertapenem | 3 | 0.5 | 0.03 |
Doripenem | 1.5 | 0.5 | 0.03 |
Imipenem | 3 | 1.5 | 0.12 |
CLA; clavulanic acid (4 µg/ml) TZB.