TABLE 3.
Etest results for atypical B. anthracis isolates
| Antibiotic | MIC range (μg/ml)a
|
|
|---|---|---|
| B. anthracis CI | B. anthracis CA | |
| Amoxicillin-clavulanic acidb | 0.016-0.023 | 3.0-6.0c |
| Ciprofloxacin | 0.038 | 0.047-0.5 |
| Doxycycline | 0.016 | 0.064-0.25 |
| Clindamycin | 0.5-0.75 | 0.75-1.0 |
| Imipenem | 0.047-0.064 | 0.064-0.94 |
| Piperacillin | 0.75-1.5 | 0.75-3.0 |
| Rifampin | 0.19-0.25 | 0.125-0.5 |
| Tetracycline | 0.032-0.47 | 0.25-1.5 |
| Vancomycin | 1.5-3.0 | 2.0-3.0 |
a
Several isolates were tested for each antibiotic.
b
Sensitive, MIC ≤ 4 μg/ml; resistant, MIC ≥ 8 μg/ml.
c
Some isolates showed intermediate sensitivity.