Diversification of Escherichia coli Expressing an SHV-Type Extended-Spectrum β-Lactamase (ESBL) during a Hospital Outbreak: Emergence of an ESBL-Hyperproducing Strain Resistant to Expanded-Spectrum Cephalosporins-Reference-Cited by-同舟云学术

Diversification of Escherichia coli Expressing an SHV-Type Extended-Spectrum β-Lactamase (ESBL) during a Hospital Outbreak: Emergence of an ESBL-Hyperproducing Strain Resistant to Expanded-Spectrum Cephalosporins

Published:1999-02 Issue:2 Volume:43 Page:393-396
ISSN:0066-4804
Container-title:Antimicrobial Agents and Chemotherapy
language:en
Short-container-title:Antimicrob Agents Chemother

Author:

Pałucha Andrzej¹,Mikiewicz Barbara²,Gniadkowski Marek¹

Affiliation:

1. Sera and Vaccines Central Research Laboratory, 00-725 Warsaw,1 and

2. Health Care Center Praga-Północ, 03-719 Warsaw,2 Poland

Abstract

ABSTRACT Twelve SHV-type extended-spectrum β-lactamase (ESBL)-producing Escherichia coli lac mutant isolates were recovered in October 1997 from 11 patients of the neonatal ward in a Warsaw hospital. The outbreak was clonal; however, some of the isolates expressed a much higher level of resistance to several β-lactam antibiotics, including expanded-spectrum cephalosporins. This phenotype has been attributed to β-lactamase hyperproduction correlating with the multiplication of ESBL gene copies, as was demonstrated for representative isolates.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

Link

https://journals.asm.org/doi/pdf/10.1128/AAC.43.2.393

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