Table 1.
Minimum inhibitory concentrations (MICs) of antimicrobial agents toward 51 A. butzleri isolates.
| CLSI antimicrobial class† | Antimicrobial agent | Percentage of all isolates with MIC(μg/ml) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| <0.25 | <0.5 | 0.5 | 1 | 2 | 4 | 8 | 16 | ≥32 | ≥64 | ||
| Aminoglycosides | Gentamicin | 11.8 | 58.8 | 27.5 | 2.0 | ||||||
| Streptomycin | 2.0 | 54.9 | 39.2 | 2.0 | 2.0 | ||||||
| Ketolide | Telithromycin | 7.8 | 17.6 | 21.6 | 37.3 | 7.8 | 5.9 | 2.0 | |||
| Macrolides | Azithromycin | 56.9 | 5.9 | 7.8 | 9.8 | 13.7 | 3.9 | 2.0 | |||
| Erythromycin | 23.5 | 27.5 | 35.3 | 7.8 | 3.9 | 2.0 | |||||
| Quinolones | Ciprofloxacin | 68.6 | 2.0 | 3.9 | 9.8 | 7.8 | 3.9 | 3.9 | |||
| Nalidixic acid | 23.5 | 33.3 | 9.8 | 5.9 | 27.5 | ||||||
| Lincosamides | Clindamycin | 5.9 | 49.0 | 35.3 | 7.8 | 2.0 | |||||
| Phenicols | Florfenicol | 3.9 | 47.1 | 39.2 | 7.8 | 2.0 | |||||
| Chloramphenicol | 2.0 | 17.6 | 58.8 | 17.6 | 3.9 | ||||||
| Tetracyclines | Tetracycline | 35.3 | 27.5 | 23.5 | 9.8 | 3.9 | |||||
†
Clinical and laboratory standards institute.
Gray shadings represent the percentage of resistance isolates.