… AmpC β-lactamases and derepressed mutants. The present study was done to detect β-lactamase
production in clinical isolates … assess ESBLs, AmpC β-lactamases (both inducible and …

… have been occasionally reported (6, 11, 16, 21) and resistance to expanded-spectrum β-lactams
is increasing (16), the prevalence of ESBLs among nosocomial isolates of …

Twelve isolates of Enterobacteriaceae (1 of Klebsiella pneumoniae, 8 of Escherichia coli, 1
of Proteus mirabilis, and 2 of Proteus vulgaris) classified as extended-spectrum β-lactamase (…

… β-lactamases (ESBL) and AmpC β-lactamases in Klebsiella pneumoniae clinical isolates. …
of β lactamase inhibitor as the AmpC β-lactamase gave a resistant zone to the cephalosporin. …

… pneumoniae nosocomial isolates in 2009 showed high levels of resistance to third-generation …
A high rate of resistance to cefepime in nosocomial isolates of E. coli and K. pneumoniae …

Methods: A total of 241 nosocomial isolates of K. pneumoniae (n= 109) and E. coli (n= 132)
from six geographically distant hospitals in India were included. These were screened for …

… found in the Asian isolates. To our knowledge this is the first IMP metallo-β-lactamase
found in Portugal and the second in Europe[15]. Other metallo β-lactamases belonging to the …

… In some hospitals, sporadic nosocomial outbreaks due to … Most of the large outbreaks of
nosocomial infection due to ESBL-… This report emphasizes that nosocomial infections caused by …

SciELO - Brasil - Prevalence of extended-spectrum beta-lactamases-producing
microorganisms in nosocomial patients and molecular characterization of the shv type isolates …

… β-lactamases (ESBLs) are enzymes that degrade β-lactam antibiotics and have been reported
to be an important cause of nosocomial … enterobacteria strains were isolated from different …