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Results of the β-Lacta test compared to conventional antimicrobial susceptibility testing for detection of ESBL-producing E. coli and Klebsiella spp. using smudge plates prepared from positive blood culture broths
| Organism and ESBL result by conventional testing | No. of strains with result by β-Lacta test |
|
|---|---|---|
| Negative | Positive | |
| Escherichia coli (n = 202) | ||
| Negative | 161 | 2 |
| Positive | 0 | 39 |
| Klebsiella spp. (n = 67) | ||
| Negative | 57 | 3 |
| Positive | 0 | 7 |
| Overall (n = 269) | ||
| Negative | 218 | 5 |
| Positive | 0 | 46 |
