Table 1.
Phenotypes of S. aureus isolated from individuals with cystic fibrosis.
| Characteristic | Number of Isolates (Total = 77) | % |
|---|---|---|
| Clinical Source | ||
| Sputum | 44 | 57.1% |
| Throat culture | 33 | 42.9% |
| Antibiotic Resistance | ||
| Oxacillin | 28 | 36.4% |
| Chloramphenicol | 0 | 0.0% |
| Tetracycline | 12 | 15.6% |
| Erythromycin | 75 | 97.4% |
| Hemolysis | ||
| Complete, rabbit blood agar ( α-toxin) | 63 | 81.8% |
| Partial, sheep blood agar (β-toxin) | 41 | 53.2% |
| Color | ||
| White | 13 | 16.9% |
| Yellow | 37 | 48.1% |
| Gold | 27 | 35.1% |
| Secreted Protease | ||
| Not detected | 41 | 53.2% |
| Faint | 13 | 16.9% |
| Present | 23 | 29.9% |