TABLE 1.
Variations in susceptibility to glycopeptides and bacitracin among Gram-negative pathogensa
| Antibiotic | MW | MIC (μg/ml) |
||||
|---|---|---|---|---|---|---|
| V. cholerae C6706 | V. cholerae H1 | EHEC | Pseudomonas aeruginosa PA14 | A. baumannii Lac-4 | ||
| Bacitracin | 1,422 | >1,000 | >1,000 | >1,000 | >1,000 | 62 |
| Vancomycin | 1,500 | 1,000 | 1,000 | 500 | >1,000 | 500 |
| Ramoplanin | 2,500 | 125 | 125 | 500 | >1,000 | 125 |
a
Shown are MICs of glycopeptides and bacitracin against selected Gram-negative pathogens. MW, molecular weight. V. cholerae clinical isolate H1 was obtained from the recent cholera outbreak in Haiti. Boldface type indicates MIC values above the limit of detection.