TABLE 3.
Antibiotic disk susceptibility results for three S. pneumoniae strains
| S. pneumoniae strain and medium | Zone diam (mm)a
|
||||
|---|---|---|---|---|---|
| Oxacillin | Erythromycin | Chloramphenicol | Trimethoprim- sulfamethoxazole | Optochin | |
| ATCC 6305 | |||||
| CSB MHA | 32-35 | 31-33 | 32-33 | 26-32 | 13-20 |
| DSB MHA | 32-33 | 31-33 | 30-34 | 29-32 | 15-17 |
| Hu MHA | 32-39 | 30-35 | 30-39 | 28-40 | 14-17 |
| ATCC 49619a | |||||
| CSB MHA | 10-11 | 28-29 | 27-29 | 26-28 | 10-13 |
| DSB MHA | 10-11 | 27-29 | 26-27 | 25-27 | 10-13 |
| Hu MHA | 13-14 | 30-32 | 33-36 | 32-36 | 10-13 |
| Clinical isolate 42796 | |||||
| CSB MHA | 29-33 | 29-30 | 29-31 | 25-28 | 12-15 |
| DSB MHA | 28-31 | 29-32 | 29-32 | 28-31 | 12-14 |
| Hu MHA | 30-35 | 30-42 | 32-38 | 27-38 | 14-17 |
a
Values are ranges. Acceptable results for CLSI susceptibility quality control: oxacillin, ≤12 mm; erythromycin, 25 to 30 mm; chloramphenicol, 23 to 27 mm; trimethoprim-sulfamethoxazole, 20 to 28 mm.