TABLE 1.
Antibiotic |
All isolates (n = 36) |
A. baumannii isolates (n = 24) |
Non-baumannii Acinetobacter isolates (n = 12) |
|||||||||
MIC (μg/ml) |
%Ra |
MIC (μg/ml) |
%Ra |
MIC (μg/ml) |
%Ra | |||||||
Range | MIC50 | MIC90 | Range | MIC50 | MIC90 | Range | MIC50 | MIC90 | ||||
Piperacillin | 8 to >64 | 32 | >64 | 38.9 | 8 to >64 | >64 | >64 | 50 | 8 to >64 | 32 | >64 | 16.7 |
Ampicillin-sulbactam | 1/2 to >8/16 | 1/2 | 4/8 | 5.6 | 1/2 to >8/16 | 2/4 | 8/16 | 8.3 | 1/2 to 4/8 | 1/2 | 2/4 | 0 |
Piperacillin-tazobactam | ≤4/16 to >4/64 | ≤4/16 | >4/64 | 22.2 | ≤4/16 to >4/64 | 4/32 | >4/64 | 29.2 | ≤4/16 to >4/64 | ≤4/16 | 4/32 | 8.3 |
Ceftazidime | 2 to >16 | 4 | >16 | 16.7 | 4 to >16 | 4 | >16 | 20.8 | 2 to >16 | 4 | 16 | 8.3 |
Cefepime | 1 to >16 | 4 | >16 | 13.9 | 2 to >16 | 4 | >16 | 16.7 | 1 to >16 | 2 | 16 | 8.3 |
Imipenem | ≤0.25 to >8 | ≤0.25 | 1 | 5.6 | ≤0.25 to >8 | ≤0.25 | 4 | 8.3 | ≤0.25 to 1 | ≤0.25 | ≤0.25 | 0 |
Meropenem | ≤0.25 to >8 | 0.5 | 2 | 5.6 | ≤0.25 to >8 | 0.5 | 4 | 8.3 | ≤0.25 to 2 | ≤0.25 | 1 | 0 |
Doripenem | ≤0.25 to >8 | ≤0.25 | 1 | 5.6 | ≤0.25 to >8 | 0.5 | 4 | 8.3 | ≤0.25 to 1 | ≤0.25 | 1 | 0 |
Gentamycin | 0.5 to >8 | 0.5 | >8 | 33.3 | 0.5 to >8 | >8 | >8 | 50 | 0.5 to 2 | 0.5 | 2 | 0 |
Tobramycin | 0.5 to >8 | 1 | >8 | 36.1 | 0.5 to >8 | 8 | >8 | 50 | 0.5 to >8 | 0.5 | 2 | 8.3 |
Amikacin | ≤1 to >32 | 2 | 4 | 2.8 | 2 to 16 | 2 | 4 | 0 | ≤1 to >32 | 2 | 8 | 1.3 |
Minocycline | ≤0.25 to >8 | 0.5 | 2 | 2.8 | ≤0.25 to >8 | 0.5 | 4 | 4.2 | ≤0.25 to 4 | ≤0.25 | 1 | 0 |
Colistin | ≤2 to 8 | ≤2 | 4 | 22.2 | ≤2 to 4 | ≤2 | 4 | 12.5 | ≤2 to >8 | ≤2 | 8 | 41.7 |
Ciprofloxacin | 0.12 to >2 | 0.5 | >2 | 33.3 | 0.12 to >2 | >2 | >2 | 50 | 0.12 to 1 | 0.25 | 1 | 0 |
Levofloxacin | ≤1 to >4 | ≤1 | >4 | 16.7 | ≤1 to >4 | 4 | >4 | 25 | ≤1 | ≤1 | ≤1 | 0 |
Trimethoprim-sulfamethoxazole | ≤19/1 to >38/2 | >38/2 | >38/2 | 61.1 | ≤19/1 to >38/2 | >38/2 | >38/2 | 66.7 | ≤19/1 to >38/2 | >38/2 | >38/2 | 50 |
aResistant.