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Comparison of results of phenotypic ESBL confirmatory testing and PCR for ESBL genesa
| PCR result | No. of strains with the following result by disk augmentation:
|
||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 48 | 1 | 49 |
| Negative | 6 | 26 | 32 |
| Total | 54 | 27 | 81 |
Only ESBL screen-positive isolates were subjected to disk augmentation and PCR. Screening and confirmatory testing for ESBL production yielded a sensitivity of 98.0% and a specificity of 96.3%.
