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TEM Derivative-Producing Enterobacter aerogenes Strains: Dissemination of a Prevalent Clone

By P. Dumarche, C. De Champs, D. Sirot, C. Chanal, R. Bonnet and J. Sirot

Abstract

TEM-24 (CAZ-6) extended-spectrum β-lactamase (ESBL) was detected in 1988 in Clermont-Ferrand, France, in Klebsiella pneumoniae (bla(TEM-24)) and Enterobacter aerogenes (bla(TEM-24b)), and since 1994, a TEM-24-producing E. aerogenes clonal strain has been observed elsewhere in the country. To determine if the spread of this clonal strain was restricted to TEM-24-producing E. aerogenes strains, 84 E. aerogenes strains (non-TEM/SHV-producing strains, TEM-1- or -2-producing strains, and different ESBL-producing strains), isolated from 1988 to 1999 in Clermont-Ferrand (n = 59) and in 11 other French hospitals in 1998 (n = 25), were studied. A clonal strain was found for TEM-24- but also for TEM-3- and TEM-1- or 2-producing isolates. This study shows that there is a clonal strain dependent on acquisition of the TEM-type enzyme (TEM-24 and other TEM types)

Topics: Mechanisms of Resistance
Publisher: American Society for Microbiology
Year: 2002
DOI identifier: 10.1128/AAC.46.4.1128-1131.2002
OAI identifier: oai:pubmedcentral.nih.gov:127085
Provided by: PubMed Central
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