Table 2.
Susceptibility of P. aeruginosa PA01 against various β-lactam antibiotics.
| Antibiotic | MIC [μgmL−1][a] | Clearing radius [mm][b] | ||
|---|---|---|---|---|
| −21 | +21 | −21 | +21 | |
| Ceftazidime | 2 | 0.5 | 12.2 | 14.3 |
| Aztreonam | 1 | 0.5 | 13.8 | 16.0 |
| Imipenem | 8 | 4 | 11.9 | 13.3 |
| Ampicillin | 512 | 128 | ||
| Cefoxitin | 2048 | 512 | ||
[a]
MIC determined by standard serial dilution.
[b]
Susceptibility determined in an agar diffusion assay using 6 mm filter disks loaded with 30 μg of antibiotic with or without 21. The zone of clearance was measured after incubation overnight.