TABLE 2.
Susceptibility profiles and MICs for 172 ECC strains
| Antibiotics | % Resistant | % Intermediate | % Susceptible | MIC50 (mg/L) | MIC90 (mg/L) | MIC range (mg/L) |
|---|---|---|---|---|---|---|
| Ampicillin | 95.9 | 3.5 | 0.6 | 256 | >1024 | 1-1024 |
| Cefoxitin | 99.4 | 0.6 | 0.0 | 512 | 1024 | 0.5-1024 |
| Ceftazidime | 25.0 | 3.5 | 71.5 | 0.25 | 256 | 0.125-256 |
| Cefepime | 16.3 | 6.4 | 77.3 | 0.25 | 32 | 0.125-256 |
| Meropenem | 8.1 | 1.7 | 90.1 | 0.125 | 0.5 | 0.0125-64 |
| Gentamicin | 6.4 | 0.0 | 93.6 | 0.25 | 2 | 0.125-256 |
| Amikacin | 1.2 | 0.0 | 98.8 | 1 | 4 | 0.5-512 |
| Ciprofloxacin | 14.5 | 7.0 | 78.5 | 0.125 | 2 | 0.125-256 |
| Chloramphenicol | 16.3 | 15.1 | 68.6 | 8 | 256 | 1-1024 |
| Fosfomycin | 22.1 | 18.0 | 59.9 | 64 | 256 | 1-1024 |
| Colistin | 71.5 | 28.5 | 0.0 | 16 | 256 | 0.125-256 |
| Tigecycline | 3.5 | 19.8 | 76.7 | 1 | 4 | 0.125-256 |
| Tetracycline | 18.0 | 27.3 | 54.7 | 4 | 64 | 1-256 |