Skip to main content

Table 2 Antimicrobial susceptibility of 30 clinically isolated MDR-PA strains against currently used antibiotics

From: Efficacy of cinnamon bark oil and cinnamaldehyde on anti-multidrug resistant Pseudomonas aeruginosa and the synergistic effects in combination with other antimicrobial agents

Antibiotics MIC range MIC50 MIC90 % susceptibility
(μg/ml) (μg/ml) (μg/ml) S I R
Colistin 2–8 4 8 23.3 63.4 13.3
Meropenem 1–1024 16 64 3.3 6.7 90
Imipenem 2–512 16 32 ND 16.7 83.3
Doripenem 0.5–256 4–8 16 3.3 43.3 53.4
Ciprofloxacin 0.5–128 64 128 10 ND 90
Piperacilin 2–1024 256 1024 36.7 ND 63.3
Ceftazidime 2– > 2048 >2048 >2048 6.7 3.3 90
  1. MIC range MIC values from lowest to highest, MIC50 MIC is position of percentile 50, MIC90 MIC is position of percentile 90, S sensitive, COL (≤2 μg/ml), MEM (≤2 μg/ml), IMI (≤2 μg/ml), DOR (≤2 μg/ml), CIP (≤1 μg/ml), PIP (≤16 μg/ml), and CAZ (≤8 μg/ml), I intermediate, COL (4 μg/ml), MEM (4 μg/ml), IMI (4 μg/ml), DOR (4 μg/ml), CIP (2 μg/ml), PIP