Table 3.
Antimicrobial resistance profile of Gram-negative strains. Data are reported as μg/ml.
| Strain | Antibiotics | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IMI | GM | TGC | SXT | AMC | PTZ | CTX | CAZ | FEP | ETP | MEM | AK | CIP | FOS | CLi | |
| E. coli (S) | – | ≤1 | ≤0.5 | ≤20 | ≤2 | ≤4 | ≤4 | ≤0.12 | ≤0.12 | ≤0.12 | ≤0.25 | 2 | ≤0.06 | ≤16 | ≤0.5 |
| E. coli (R) | ≤0.25 | >8 | ≤0.5 | >160 | 16 | ≤4 | >32 | 16 | 4 | ≤0.5 | ≤0.25 | 4 | >2 | ≤16 | ≤0.5 |
| P. aeruginosa (S) | – | 2 | >4 | >160 | – | 8 | 16 | 2 | – | – | 1 | 4 | 0.25 | >128 | ≤0.5 |
| P. aeruginosa (R) | 2 | ≤1 | ≥8 | 80 | ≥32 | ≤4 | 8 | ≤1 | 2 | – | ≤0.25 | ≤2 | ≥4 | – | ≤0.5 |
IP, imipenem; GM, gentamicin; TGC, tigecycline; SXT, trimethoprim/sulfamethoxazole; AMC, amoxicillin/clavulanic acid; PTZ, piperacillin/tazobactam; CTX, cefotaxime; CAZ, ceftazidime; FEP, cefepime; ETP, ertapenem; MEM, meropenem; AK, amikacin; CIP, ciprofloxacin; FOS fosfomycin; CL, colistin.