Table 4 Minimum inhibitory concentration (MIC) of seven antimicrobial agents against A. baumannii isolates
Antimicrobial agent | MIC (mg/L) | Percent of isolates (%) | Total | ||||
|---|---|---|---|---|---|---|---|
Range | 50% | 90% | S | I | R | ||
Imipenem | 2–256 | 32 | 256 | 9 (5.5) | 0 (0) | 154 (94.5) | 163 |
Meropenem | 2–256 | 32 | 128 | 9 (5.5) | 0 (0) | 154 (94.5) | |
Colistin | < 0.25–8 | 2 | 4 | 140 (85.9) | 0 (0) | 23 (14.1) | |
Polymyxin B | < 0.25–8 | 1 | 2 | 163 (100) | 0 (0) | 0 (0) | |
Doxycycline | 2–256 | 32 | 64 | 17 (10.4) | 10 (6.2) | 136 (83.4) | |
Minocycline | 2–256 | 4 | 16 | 57 (34.97) | 22 (13.49) | 84 (51.53) | |
Tetracycline | 2–256 | 32 | 128 | 11 (6.7) | 6 (3.7) | 146 (89.6) | |