Background The extended-spectrum beta-lactamase (ESBL)-producing Klebsiella
pneumoniae has increasingly become a major contributor to nosocomial infections and can …

Objective: The current investigation explores whether extended-spectrum β-lactamase
(ESBL) genes exist in clinical non-ESBL–producing Klebsiella pneumoniae isolates …

Objectives The aim of this study was to evaluate the risk factors for pneumonia due to
extended-spectrum β-lactamase-producing Klebsiella pneumoniae (ESBL-KP) and to …

Background Extended-spectrum β-lactamase (ESBL)-producing Klebsiella pneumoniae (K.
pneumoniae) is one of the most popular pathogens that cause refractory respiratory tract …

The global emergence of extended-spectrum beta-lactamase (ESBL)-producing Klebsiella
pneumoniae presents a significant public health threat and complicates antibiotic treatment …

Background: Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (E. coli)
and Klebsiella pneumoniae (K. pneumoniae) are the important pathogens causing …

Klebsiella pneumoniae is a major pathogen implicated in nosocomial infections. Extended-
spectrum β-lactamase (ESBL)-producing K. pneumoniae isolates are a public health …

Introduction The study of Klebsiella quasipneumoniae, Klebsiella variicola, and AmpC
production in extended-spectrum β-lactamase (ESBL)-producing Klebsiella in Japan is …

Broad-spectrum ampicillin-resistant and third-generation cephalosporin-resistant
Enterobacteriaceae, particularly Escherichia coli and Klebsiella pneumoniae that have …

Objective To provide data on the molecular characteristics of extended-spectrum β-
lactamase (ESBL)-producing Klebsiella pneumoniae clinical isolates in Japan. Methods A …