Table 3.
Antibiotic susceptibility of K. pneumoniae clinical isolates.
| Antibiotic | K. pneumoniae susceptibility pattern (n = 114) | MIC50 and MIC90 | |||
|---|---|---|---|---|---|
| Sensitive | Intermediate | Resistant | MIC50 | MIC90 | |
| Number (%) | Number (%) | Number (%) | |||
| Cefotaxime | 15 (13) | 1 (1) | 98 (86) | 256 | >1024 |
| Ceftazidime | 26 (23) | 14 (12) | 74 (65) | 32 | >1024 |
| Cefoperazone | 17 (15) | 3 (2) | 94 (82) | 512 | >1024 |
| Cefoperazone/sulbactam | 51 (45) | 12 (10) | 51 (45) | 32 | 1024 |
| Ceftriaxone | 18 (16) | — | 96 (84) | 256 | >1024 |
| Cefepime | 21 (18) | 24 (21) | 69 (61) | 32 | 256 |
| Imipenem | 86 (75) | 5 (4) | 23 (20) | ≤0.5 | 4 |
| Meropenem | 85 (75) | 2 (2) | 27 (24) | ≤0.5 | 16 |
| Tetracycline | 32 (28) | 4 (3) | 78 (68) | 128 | 512 |
| Tigecycline | 111 (97) | — | 3 (3.0) | ≤0.5 | ≤0.5 |
| Gentamicin | 46 (40) | 12 (11) | 56 (49) | 8 | >1024 |
| Amikacin | 84 (74) | 1 (1) | 29 (25) | ≤0.5 | >1024 |
| Thiamphenicol | 7 (6.0) | 2 (2) | 105 (92) | 1024 | >1024 |
| Ciprofloxacin | 60 (53) | 3 (2) | 51 (45) | 1 | 128 |
| Levofloxacin | 65 (57) | 5 (4) | 44 (39) | ≤0.5 | 64 |