Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Percentage of false susceptibility to third- and fourth-generation cephalosporins in the groups of ESBL and AmpC producers when using the microdilution method.
| Antibiotic | False susceptibility | |||||
|---|---|---|---|---|---|---|
| CLSI criteria | EUCAST criteria | |||||
| Breakpoint (mg/L) | ESBL strains (%) | AmpC strains (%) | Breakpoint (mg/L) | ESBL strains (%) | AmpC strains (%) | |
| Cefoperazone | ≤16 | 21 | 76 | not stated | – | – |
| Cefotaxime | ≤8 | 29 | 67 | ≤1 | 7 | 43 |
| Ceftazidime | ≤8 | 32 | 29 | ≤1 | 5 | 5 |
| Cefepime | ≤8 | 60 | – | ≤1 | 8 | – |
