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MIC50 and MIC90 values and antimicrobial resistance of the 93 A. baumannii isolates
| Antimicrobial agents | Breakpoint for resistance (mg/L) | % Resistant | Range (mg/L) | MIC50 (mg/L) | MIC90 (mg/L) |
|---|---|---|---|---|---|
| Imipenem | ≥8 | 100 | 8–128 | 32 | 64 |
| Meropenem | ≥8 | 99 | 4–128 | 32 | 64 |
| Amikacin | ≥64 | 87 | 0.5 – > 512 | >512 | >512 |
| Ciprofloxacin | ≥4 | 100 | 32 – > 512 | >512 | >512 |
| Colistin | ≥4 | 5 | 0.125–16 | 0.5 | 1 |
| Tigecycline | - | - | ≤0.125–16 | 1 | 8 |
