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BioMed Research International
Volume 2015 (2015), Article ID 256028, 3 pages
Research Article

First Report of Klebsiella pneumoniae-Carbapenemase-3-Producing Escherichia coli ST479 in Poland

1Department of Microbiological Diagnostics and Infectious Immunology, Medical University of Bialystok, 15a Waszyngtona Street, 15-269 Bialystok, Poland
2Department of Microbiological Diagnostics and Infectious Immunology, University Hospital of Bialystok, 15a Waszyngtona Street, 15-269 Bialystok, Poland

Received 30 May 2014; Accepted 5 November 2014

Academic Editor: Madhab K. Chattopadhyay

Copyright © 2015 Dominika Ojdana et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An increase in the antibiotic resistance among members of the Enterobacteriaceae family has been observed worldwide. Multidrug-resistant Gram-negative rods are increasingly reported. The treatment of infections caused by Escherichia coli and other Enterobacteriaceae has become an important clinical problem associated with reduced therapeutic possibilities. Antimicrobial carbapenems are considered the last line of defense against multidrug-resistant Gram-negative bacteria. Unfortunately, an increase of carbapenem resistance due to the production of Klebsiella pneumoniae carbapenemase (KPC) enzymes has been observed. In this study we describe the ability of E. coli to produce carbapenemase enzymes based on the results of the combination disc assay with boronic acid performed according to guidelines established by the European Community on Antimicrobial Susceptibility Testing (EUCAST) and the biochemical Carba NP test. Moreover, we evaluated the presence of genes responsible for the production of carbapenemases (, , , ) and genes encoding other β-lactamases (, , ) among E. coli isolate. The tested isolate of E. coli that possessed the and genes was identified. The tested strain exhibited susceptibility to colistin (0.38 μg/mL) and tigecycline (1 μg/mL). This is the first detection of in an E. coli ST479 in Poland.