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Clin Microbiol Infect. 2008 Jan;14 Suppl 1:75-81.

Genetic support of extended-spectrum beta-lactamases.

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1
Service de Bactériologie-Virologie, Hôpital de Bicêtre, South-Paris Medical School, University Paris XI, Le Kremlin-Bicêtre, France. laurent.poirel@bct.aphp.fr

Erratum in

  • Clin Microbiol Infect. 2008 May;14 Suppl 5:21-4.

Abstract

Genes encoding extended-spectrum beta-lactamases (ESBLs) have been reported in a variety of Gram-negative species, mostly in Enterobacteriaceae, Pseudomonas aeruginosa and Acinetobacter baumannii. They are mostly either TEM or SHV derivatives, CTX-M-like enzymes--now emerging worldwide--or, less frequently, VEB, GES, and PER ESBLs. The mechanisms responsible for their acquisition are very diverse, and mostly are related to insertion sequences (ISs), transposons, class 1 integrons, and also sul1-type integrons containing the ISCR1 element. This diversity of genetic vehicles at the origin of these mobilisation/acquisition processes enhances the spread of ESBLs.

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