TABLE 1.
Antimicrobial resistance profile of the CRKP strains.
Antimicrobial agents | Resistance rate (%) n (%) | MIC50 (μg/ml) | MIC90 (μg/ml) | MIC range (μg/ml) |
TZP | 100 | ≥128 | ≥128 | 128–128 |
CAZ | 98.2 | ≥64 | ≥64 | 1–64 |
CRO | 98.2 | ≥64 | ≥64 | 1–64 |
FEP | 98.2 | ≥64 | ≥64 | 2–64 |
ATM | 91.2 | ≥64 | ≥64 | 1–64 |
ETP | 100 | ≥32 | ≥32 | 2–32 |
IMP | 87.7 | ≥16 | ≥16 | 1–16 |
AMK | 57.9 | ≥64 | ≥64 | 2–64 |
GEN | 73.7 | ≥16 | ≥16 | 1–16 |
CIP | 87.7 | ≥4 | ≥4 | 0.25–4 |
LVX | 80.7 | ≥8 | ≥8 | 0.25–8 |
SXT | 54.4 | ≥16 | ≥16 | 1–320 |
POL | 1.8 | 0.5 | 1 | 0.125–128 |
TGC | 0 | 1 | 2 | 0.25–2 |
FOS | 70.2 | 512 | ≥1,024 | 32–1,024 |
MIC, minimal inhibitory concentrations; TZP, piperacillin/tazobactam; CAZ, ceftazidime; CRO, ceftriaxone; FEP, cefepime; ATM, aztreonam; ETP, ertapenem; IMP, imipenem; AK, amikacin; CEN, gentamicin; CIP, ciprofloxacin; LEV, levofloxacin; STX, trimethoprim/sulfamethoxazole; POL, polymyxin B; TGC, tigecycline; FOS, fosfomycin; CRKP, carbapenem-resistant Klebsiella pneumoniae.