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Concordance between results of PhaB assay with streptomycin at 8 μg/ml for 24 h and resistance ratio methoda
| PhaB assay result | No. of isolates with resistance ratio method result ofa:
|
% Concordance | |
|---|---|---|---|
| Sensitive | Resistant | ||
| 99% cutoff (n = 50) | |||
| Sensitive | 39 | 1 | |
| Resistant | 0 | 10 | 98 |
| 90% cutoff (n = 50) | |||
| Sensitive | 39 | 2 | |
| Resistant | 0 | 9 | 96 |
Results after 10 to 21 days, using a cutoff of 40 μg/ml in egg medium.
