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Susceptibility to erythromycin and cefotaxime according to penicillin susceptibility
| Group and antibiotic | % of isolatesa
|
||
|---|---|---|---|
| S | I | R | |
| Penicillin G susceptible | |||
| Cefotaximeb | 100 | 0 | 0 |
| Erythromycin | 87.1 | 0.5 | 12.4 |
| Penicillin G intermediate | |||
| Cefotaximeb | 87 | 12.7 | 0.3 |
| Erythromycin | 39.9 | 1.5 | 58.6 |
| Penicillin G resistant | |||
| Cefotaximeb | 25.8 | 60.2 | 14.8 |
| Erythromycin | 48.9 | 2.1 | 49 |
S, susceptible; I, intermediate; R, resistant.
Breakpoints used; ≤0.5 to ≥2 μg/ml.
