Table 3.
Antimicrobial susceptibility pattern of 57 isolates of carbapenem-resistant ST15 K. pneumoniae isolated at a large Vietnamese pediatric hospital
| Antimicrobial agent | S ≤ (mg/L) | R > (mg/L) | S (%) | R (%) | MIC50 (mg/L) | MIC90 (mg/L) |
|---|---|---|---|---|---|---|
| Gentamicin | 2 | 4 | 91 | 8.8 | 1.5 | 2 |
| Tobramycin | 2 | 4 | 0 | 100 | 16 | 24 |
| Amikacin | 8 | 16 | 0 | 96 | 32 | 64 |
| Chloramphenicol | 8 | 8 | 3.5 | 96 | 128 | > 256 |
| Trimethoprim/sulfamethoxazole | 2 | 4 | 70 | 25 | 2 | > 32 |
| Ciprofloxacin | 0.25 | 0.5 | 0 | 100 | > 32 | > 32 |
| Cefotaxime | 1 | 2 | 0 | 100 | > 32 | > 32 |
| Imipenem | 2 | 8 | 0 | 96 | > 32 | > 32 |
| Meropenem | 2 | 8 | 0 | 100 | > 32 | > 32 |
| Ertapenem | 0.5 | 1 | 0 | 100 | > 32 | > 32 |
| Tigecycline | 1 | 2 | 82 | 7.0 | 0.5 | 2 |
| Fosfomycin | 32 | 32 | 70 | 30 | 16 | > 1024 |
| Ceftazidime/avibactam | 8 | 8 | 96 | 3.5 | 2 | 3 |
| Colistin | 2 | 2 | 58 | 42 | 0.5 | 32 |