TABLE 4.
Testing of susceptibility of clinical isolates of M. genavense from 12 patients to antimycobacterial drugs evaluated from BACTEC PZA Test Medium vials at pH 6.0a
| Drug | Concn (μg/ml) | No. of strains
|
||
|---|---|---|---|---|
| Sensitive | Borderline | Resistant | ||
| Rifampin | 2.0 | 12 | 0 | 0 |
| Isoniazid | 1.0 | 0 | 1 | 11 |
| Amikacin | 5.0 | 10 | 2 | 0 |
| Rifabutin | 0.25/1.0b | 12 | 0 | 0 |
| Ciprofloxacin | 2.0 | 9 | 2 | 1 |
| Ofloxacin | 4.0 | 9 | 2 | 1 |
| Roxithromycin | 5.0 | 12 | 0 | 0 |
| Clarithromycin | 2.0 | 12 | 0 | 0 |
| Azithromycin | 2.0 | 6 | 0 | 0 |
| Fusidic acid | 25.0 | 12 | 0 | 0 |
a
Susceptibility testing on ethambutol and clofazimine could not be carried out at pH 6.0.
b
Results are for nine/three isolates, respectively.