In this study, 121 Escherichia coli samples isolated from clinical specimens obtained from
Pakistan Institute of Medical Science, Islamabad, Pakistan, were analyzed for extended …

Background Resistance to cephalosporins in Enterobacteriaceae is mainly due to the
production of extended-spectrum beta-lactamase (ESBL). Little is known about ESBL …

Background The use of antibiotic agents in the treatment of infectious diseases has greatly
contributed to the decrease in morbidity and mortality, but these great advances in treatment …

Objective To study the prevalence of extended-spectrum β-lactamases (ESBLs) among 663
clinical isolates obtained from various parts of India and to study the occurrence of different …

Extended spectrum beta-lactmase (ESBL) producing organisms create a major problem for
clinical therapeutics. The frequency of ESBL producing strains among clinical isolates has …

Purpose: Extended-spectrum β-lactamases (ESBLs) have become an issue in community
worldwide due to an increase in antibiotic resistance over the past decade. This study was …

Objective The production of β-lactamase enzymes such as AmpC β-lactamases and
extended-spectrum β-lactamases (ESBLs) is among the main mechanisms for resistance to …

Introduction: Few reports about the prevalence and genetic basis of extended spectrum beta-
lactamases (ESBLs) are available from Saudi Arabia. We sought to determine the …

Methods: One hundred consecutive, non-duplicate clinical isolates of K. pneumoniae
collected over a period of one year (June 2008-June 2009) were included in the study. An …

A total of 23 clinical isolates (15 Escherichia coli and 8 Klebsiella pneumoniae), resistant to
cefotaxime and ceftazidime recovered during 2002 and 2003, were investigated for …