Table 1 Antimicrobial susceptibility testing of the twenty-nine carbapenem-resistant K. pneumoniae
Antimicrobial agents | Total (n = 29) | MIC50 (µg/ml) | MIC90 (µg/ml) |
|---|---|---|---|
R (%) | |||
Piperacillin | 29 (100%) | > 64 | > 64 |
Piperacillin-tazobactam | 29 (100%) | > 128/2 | > 128/2 |
Cefepime | 29 (100%) | > 16 | > 16 |
Ceftriaxone | 29 (100%) | > 32 | > 32 |
Meropenem | 29 (100%) | 64 | 128 |
Ertapenem | 29 (100%) | 64 | 128 |
Aztreonam | 28 (97%) | > 16 | > 16 |
Gentamicin | 0 (0) | < 1 | < 1 |
Amikacin | 0(0) | < 4 | < 4 |
Ciprofloxacin | 0 (0) | < 0.5 | < 1 |
Tetracycline | 0 (0) | < 4 | < 4 |
Trimethoprim-sulfamethoxazole | 0 (0) | < 2/38 | < 2/38 |
Tigecycline | 0 (0) | < 2 | < 2 |
Polymyxin B | 0 (0) | < 1 | < 1 |