Antimicrobial Agentsa | Breakpoint for resistance (μg/ml) | No. of resistant Isolates (%) | MIC data (μg/ml) | ||
---|---|---|---|---|---|
Range | MIC50 | MIC90 | |||
Amikacin | ≥64 | 0 | 0.5 to 4 | 1 | 2 |
Aztreonam | ≥16 | 25 (78.1%) | < 0.25 to 256 | 32 | 256 |
Ceftazidime | ≥16 | 32 (100%) | 32 to > 512 | 256 | > 512 |
Ciprofloxacin | ≥4 | 15 (46.87%) | < 0.25 to 64 | 2 | 32 |
Colistinb | > 2 | 0 | 0.03 to 2 | 0.25 | 0.5 |
Imipenem | ≥4 | 18 (56.25%) | < 0.25 to16 | 4 | 8 |
Meropenem | ≥4 | 18 (56.25%) | 0.5 to 16 | 4 | 16 |
Tigecyclineb | > 0.5 | 12 (37.5%) | < 0.25 to 4 | 0.5 | 1 |