Table 4 Agreement of AST results produced by the Phoenix system and the Etest method: streptococci of different species or groups.
Antibiotic | % of corresponding results | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
S. pneumoniae (n = 50) | Beta-hemolytic streptococci (n = 65) | Viridans group streptococci (n = 32) | ||||||||||
CA | mE | ME | VME | CA | mE | ME | VME | CA | mE | ME | VME | |
Penicillin | 88.0 | 12.0 | 0 | 0 | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 |
Erythromycin | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 |
Clindamycin | 96.0 | 4.0 | 0 | 0 | 98.5 | 0 | 1.7 | 0 | 96.9 | 3.1 | 0 | 0 |
Levofloxacin | 100 | 0 | 0 | 0 | 98.5 | 1.5 | 0 | 0 | 100 | 0 | 0 | 0 |
Chloramphenicol | 100 | 0 | 0 | 0 | 98.5 | 1.5 | 0 | 0 | 100 | 0 | 0 | 0 |
Cefotaxime | 98.0 | 2.0 | 0 | 0 | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 |
Cefepime | 98.0 | 2.0 | 0 | 0 | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 |
Vancomycin | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 |
Total | 95.0 | 5.0 | 0 | 0 | 99.4 | 0.4 | 0.2 | 0 | 99.6 | 0.4 | 0 | 0 |