Fosfomycin, from susceptibility to resistance: Impact of the new guidelines on breakpoints
The fosfomycin breakpoint using the disc diffusion method (DDM) changed in the 2019 CA-SFM/EUCAST guidelines v2 (24mm versus 19mm). We assessed its impact on categorization of Enterobacterales recovered from urine samples in emergency departments. A total of 7749 and 2348 strains were tested using t...
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Veröffentlicht in: | Médecine et maladies infectieuses 2020-10, Vol.50 (7), p.611-616 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The fosfomycin breakpoint using the disc diffusion method (DDM) changed in the 2019 CA-SFM/EUCAST guidelines v2 (24mm versus 19mm). We assessed its impact on categorization of Enterobacterales recovered from urine samples in emergency departments. A total of 7749 and 2348 strains were tested using the DDM and the broth microdilution method (BMD), respectively. The DDM with the 19-mm breakpoint was in accordance with the BMD. Using the 24-mm breakpoint, the overall rate of fosfomycin resistance in Enterobacterales increased by three-fold (5.6% vs 18.1%, P |
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ISSN: | 0399-077X |
DOI: | 10.1016/j.medmal.2020.07.003 |