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Positive Extended-Spectrum-β-Lactamase (ESBL) Screening Results May Be Due to AmpC β-Lactamases More Often than to ESBLs

3 Dec 2009

Abstract excerpt

AmpC β-lactamases can interfere with extended-spectrum-β-lactamase (ESBL) confirmatory tests. Resulting failures to detect ESBLs can endanger patients because false susceptibility to cephalosporins may be reported ([5][1]). This problem occurs with CLSI and some other ESBL confirmatory tests, but

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PMID: 19955269
DOI: 10.1128/jcm.01544-09

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