Table 1 In vitro activities of the antimicrobial agents tested against 105 CnsKP isolates.
Antimicrobial agent | MIC range (μg/mL) | MIC50a (μg/mL) | MIC90b (μg/mL) | No. (%) of isolates susceptible |
|---|---|---|---|---|
Ciprofloxacin | ≤0.25 to ≥4 | ≥4 | ≥4 | 4 (3.8) |
Levofloxacin | ≤0.12 to ≥8 | ≥8 | ≥8 | 4 (3.8) |
Ampicillin-sulbactam | ≥32 | ≥32 | ≥32 | 0 (0) |
Piperacillin-tazobactam | ≥128 | ≥128 | ≥128 | 0 (0) |
Cefazolin | ≥64 | ≥64 | ≥64 | 0 (0) |
Ceftriaxone | 2 to ≥64 | ≥64 | ≥64 | 0 (0) |
Ceftazidime | 16 to ≥64 | ≥64 | ≥64 | 0 (0) |
Cefepime | ≤1 to ≥64 | ≥64 | ≥64 | 12 (11.4) |
Amikacin | ≤2 to ≥64 | ≤2 | ≥64 | 84 (80) |
Gentamicin | ≤1 to ≥16 | ≤1 | ≥16 | 59 (56.2) |
Ertapenem | 2 to ≥8 | ≥8 | ≥8 | 0 (0) |
Imipenem | 1 to ≥16 | 8 | ≥16 | 1 (0.9) |
Colistin | ≤0.5 to ≥16 | ≤0.5 | 2 | 93 (88.6) |
Tigecycline | ≤0.5 to ≥8 | 2 | 4 | 86 (81.9) |
