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ESBL-producing Escherichia coli ?and Its Rapid Rise among Healthy People.


ABSTRACT: Since around the 2000s, Escherichia coli (E. coli) resistant to both oxyimino-cephalosporins and fluoroquinolones has remarkably increased worldwide in clinical settings. The kind of E. coli is also identified in patients suffering from community-onset infectious diseases such as urinary tract infections. Moreover, recoveries of multi-drug resistant E. coli from the feces of healthy people have been increasingly documented in recent years, although the actual state remains uncertain. These E. coli isolates usually produce extended-spectrum ?-lactamase (ESBL), as well as acquisition of amino acid substitutions in the quinolone-resistance determining regions (QRDRs) of GyrA and/or ParC, together with plasmid-mediated quinolone resistance determinants such as Qnr, AAC(6')-Ib-cr, and QepA. The actual state of ESBL-producing E. coli in hospitalized patients has been carefully investigated in many countries, while that in healthy people still remains uncertain, although high fecal carriage rates of ESBL producers in healthy people have been reported especially in Asian and South American countries. The issues regarding the ESBL producers have become very complicated and chaotic due to rapid increase of both ESBL variants and plasmids mediating ESBL genes, together with the emergence of various "epidemic strains" or "international clones" of E. coli and Klebsiella pneumoniae harboring transferable-plasmids carrying multiple antimicrobial resistance genes. Thus, the current state of ESBL producers outside hospital settings was overviewed together with the relation among those recovered from livestock, foods, pets, environments and wildlife from the viewpoint of molecular epidemiology. This mini review may contribute to better understanding about ESBL producers among people who are not familiar with the antimicrobial resistance (AMR) threatening rising globally.

SUBMITTER: Kawamura K 

PROVIDER: S-EPMC6989193 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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ESBL-producing <i>Escherichia coli</i> 
and Its Rapid Rise among Healthy People.

Kawamura Kumiko K   Nagano Noriyuki N   Suzuki Masahiro M   Wachino Jun-Ichi JI   Kimura Kouji K   Arakawa Yoshichika Y  

Food safety (Tokyo, Japan) 20171229 4


Since around the 2000s, <i>Escherichia coli</i> (<i>E. coli</i>) resistant to both oxyimino-cephalosporins and fluoroquinolones has remarkably increased worldwide in clinical settings. The kind of <i>E. coli</i> is also identified in patients suffering from community-onset infectious diseases such as urinary tract infections. Moreover, recoveries of multi-drug resistant <i>E. coli</i> from the feces of healthy people have been increasingly documented in recent years, although the actual state re  ...[more]

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