Ann Clin Microbiol 2020;23:81-92. Epidemiological Study of an Outbreak of KPC-2-producing Klebsiella pneumoniae in a Tertiary Hospital in Korea
| Antimicrobials | Total (n = 100) No. (%) | Pulsotype A (n = 31) No. (%) | Pulsotype B (n = 63) No. (%) | Others (n = 6) No. (%) |
|---|---|---|---|---|
| Resistant to | ||||
| Ampicillin | 100 (100.0) | 31 (100.0) | 63 (100.0) | 6 (100.0) |
| Ampicillin-sulbactam | 87 (87.0) | 29 (93.5) | 52 (82.5) | 6 (100.0) |
| Piperacillin-tazobactam | 99 (99.0) | 31 (100.0) | 63 (100.0) | 5 (83.3) |
| Cefazolin | 100 (100.0) | 31 (100.0) | 63 (100.0) | 6 (100.0) |
| Ceftazidime | 100 (100.0) | 31 (100.0) | 63 (100.0) | 6 (100.0) |
| Cefotaxime | 100 (100.0) | 31 (100.0) | 63 (100.0) | 6 (100.0) |
| Cefepime | 80 (80.0) | 12 (38.7) | 62 (98.4) | 6 (100.0) |
| Cefoxitin | 100 (100.0) | 30 (96.8) | 63 (100.0) | 6 (100.0) |
| Aztreonam | 100 (100.0) | 31 (100.0) | 63 (100.0) | 6 (100.0) |
| Ertapenem | 97 (97.0) | 31 (100.0) | 63 (100.0) | 3 (50.0) |
| Meropenem | 100 (100.0) | 31 (100.0) | 63 (100.0) | 6 (100.0) |
| Gentamicin | 62 (62.0) | 1 (3.2) | 61 (96.8) | 0 (0.0) |
| Amikacin | 2 (2.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Levofloxacin | 97 (97.0) | 31 (100.0) | 63 (100.0) | 3 (50.0) |
| Trimethoprim-sulfamethoxazole | 96 (96.0) | 31 (100.0) | 63 (100.0) | 2 (33.3) |
| Tigecycline | 56 (56.0) | 1 (3.2) | 55 (87.3) | 0 (0.0) |