Table 2. EUCAST interpretive criteria of fosfomycin and amikacin for Enterobacteriaceae.
| MIC (μg/ml) | Zone Diameter Breakpoints (mm) | |||||
|---|---|---|---|---|---|---|
| Susceptible | Intermediate | Resistant | Susceptible | Intermediate | Resistant | |
| Fosfomycin | ≤32 | >32 | ≥24* | NA | <24* | |
| Amikacin | ≤16 | 32 | ≥64 | ≥17 | 15-16 | ≤14 |
| Gentamicin | ≤4 | 8 | ≥16 | ≥15 | 13-14 | ≤12 |
| Ampicillin | ≤8 | 16 | ≥32 | ≥17 | 14-16 | ≤13 |
| Ceftriaxone | ≤1 | 2 | ≥4 | ≥23 | 20-22 | ≤19 |
| Imipenem | ≤1 | 2 | ≥4 | ≥23 | 20-22 | ≤19 |
For E. coli only. NA: Not Available