SUMMARY Extraintestinal pathogenic Escherichia coli (ExPEC) strains are responsible for a
majority of human extraintestinal infections globally, resulting in enormous direct medical …

Objectives Intestinal colonization by ESBL Escherichia coli and its association with
community-acquired MDR infections is of great concern. This review determined the …

Escherichia coli sequence type 131 (ST131) and Klebsiella pneumoniae ST258 emerged in
the 2000s as important human pathogens, have spread extensively throughout the world …

In 2008, a previously unknown Escherichia coli clonal group, sequence type 131 (ST131),
was identified on three continents. Today, ST131 is the predominant E. coli lineage among …

Background. Gut colonization is a risk factor for infections with extended-spectrum beta-
lactamase (ESBL)–producing organisms. We aimed to determine the ESBL class A reservoir …

In the last 10 years, extended-spectrum β-lactamase-producing enterobacteria (ESBL-E)
have become one of the main challenges for antibiotic treatment of enterobacterial …

Multilocus sequence typing reveals that many bacterial species have a clonal structure and
that some clones are widespread. This underlying phylogeny was not revealed by pulsed …

Pathogenic Escherichia coli strains cause a wide variety of intestinal and extraintestinal
infections. The widespread geographical clonal dissemination of intestinal pathogenic E …

Bacteria carry extrachromosomal, self-replicating genetic elements called plasmids. A
plasmid is defined as a doublestranded, circular DNA molecule capable of autonomous …

Escherichia coli sequence type 131 (ST131) is a worldwide pandemic clone, causing
predominantly community-onset antimicrobial-resistant infection. Its pandemic spread was …