July 7, 2019  |  

Characterization of ESBL disseminating plasmids.

Authors: Brolund, Alma and Sandegren, Linus

Bacteria producing extended-spectrum ß-lactamases (ESBLs) constitute a globally increasing problem that contributes to treatment complications and elevated death rates. The extremely successful dissemination by ESBL-producing Enterobacteriaceae during the latest decades is a result of the combination of mobilization, evolution and horizontal spread of ß-lactamase genes on plasmids. In parallel, spread of these plasmids to particularly well-adapted bacterial clones (outbreak clones) has expanded. In this review we describe ESBL-producing bacteria and the genetic mechanisms for dissemination of ESBL resistance. We describe available methodology for studying plasmids and the importance of including plasmids in epidemiological typing as natural parts of the organisms. Plasmids play a fundamental role in how resistance arises and disseminates.

Journal: Infectious diseases
DOI: 10.3109/23744235.2015.1062536
Year: 2016

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