Table 1.
MICs of cefazolin, daptomycin, and nafcillin for the MSSA isolates tested at standard and high inocula
| Inoculum | MIC (μg/ml)a |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cefazolin |
Daptomycin |
Nafcillin |
||||||||
| TX0117 | TX0117c | ATCC 29213 | ATCC 25923 | TX0117 | ATCC 29213 | ATCC 25923 | TX0117 | ATCC 29213 | ATCC 25923 | |
| Standard (5 × 105 CFU/ml) | 1 | 0.5 | 0.5 | 0.25 | 0.125 | 0.25 | 0.125 | 0.25 | 0.25 | 0.25 |
| High (5 × 107 CFU/ml) | 64 | 1 | 8 | 1 | 4 | 4 | 4 | 0.5 | 0.5 | 0.5 |
a
TX0117c, β-lactamase-cured derivative of TX0117; ATCC 29213, low-level producer of type A β-lactamase; ATCC 25923, β-lactamase-negative strain.