… We investigate the dissemination of CTX-M enzymes among clinical isolates of Escherichia
coli recovered in … We describe the phenotypes and genetic characteristics of these isolates. …

… Our aim has been to determine the activity of β-lactam and non–β-lactam antibiotics in
clinical isolates of ESBL-producing strains of E. coli using an automated assay and to determine …

… a novel β-lactamase inhibitor with activity against serine carbapenemases. We tested the
activity of meropenem plus RPX7009 against 4,500 recent Gram-negative clinical isolates from …

… β-lactamases (ESBLs) is one of the most important mechanisms of resistance against β-lactam
antibiotics among clinical isolates … from TEM and SHV β-lactamases, but recently a large …

… detect MBL-producing clinical isolates. However, occasional … β-lactamase-producing isolates
(2). For the phenotypic confirmation of extended-spectrum-β-lactamase-producing isolates, …

Consecutive clinical isolates of Escherichia coli (n = 87) and Klebsiella pneumoniae (n = 25)
with reduced susceptibilities to oxyimino-cephalosporins (MICs > 1 mg/liter) from 18 …

… mechanisms mediating β-lactam resistance in E. coli and K. pneumoniae clinical isolates
collected … In this study, 80 clinical isolates of Enterobacteriaceae were collected from several …

… Therefore, it is expected that this clinical strain might belong to MRSA group and not to … four
multidrug resistant, β-lactamase producing MRSA strains and a βlactamase producing MSSA …

… This work reports, for the first time, the presence of New Delhi metallo-β-lactamase 1 (…
clinical isolates MMA83 and MMA533 were screened for the presence of metallo-β-lactamases. …

… -based β-lactamase inactivators (4, 20, 26, 29). Thus far, the overall prevalence of these
enzymes among clinical isolates has remained low since most metallo-β-lactamases are …