In: Antimicrobial Agents and Chemotherapy, 2014, p. AAC.02695–14
The whole sequence of plasmid pENVA carrying the extended-spectrum ß-lactamase gene blaCTX-M-15 was determined. It has been identified from a series of clonally-related Klebsiella pneumoniae ST274 strains recovered from companion animals. This plasmid was 253,984-bp in-size and harbored, in addition to blaCTX-M-15, a large array of genes encoding...
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In: BioMed Research International, 2014, vol. 2014, p. e249856
The emergence of one of the most recently described carbapenemases, namely, the New Delhi metallo-lactamase (NDM-1), constitutes a critical and growingly important medical issue. This resistance trait compromises the efficacy of almost all lactams (except aztreonam), including the last resort carbapenems. Therapeutical options may remain limited mostly to colistin, tigecycline, and fosfomycin....
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In: Antimicrobial Agents and Chemotherapy, 2014, vol. 58, no. 5, p. 2929–2933
Twenty-two consecutive carbapenem-resistant enterobacterial isolates were recovered from patients hospitalized between January and April 2013 in different units at a university hospital in Istanbul, Turkey. These were Klebsiella pneumoniae isolates producing the carbapenemases OXA-48, NDM-1, and KPC-2, Enterobacter cloacae isolates producing NDM-1, and Escherichia coli isolates producing OXA-48....
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In: Antimicrobial Agents and Chemotherapy, 2014, vol. 58, no. 5, p. 2976–2978
The carbapenem-hydrolyzing class D β-lactamase OXA-253 was identified in an Acinetobacter baumannii clinical isolate belonging to sequence type 113 (ST113) in Brazil. OXA-253 shares 93.8% amino acid identity with OXA-143. The blaOXA-253 gene is located on a ca. 20-kb plasmid. The genetic environment of the blaOXA-253 gene shares the highest identity with...
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In: Antimicrobial Agents and Chemotherapy, 2014, vol. 58, no. 4, p. 2472–2474
Twelve consecutive carbapenem-resistant Escherichia coli isolates were recovered from patients (infection or colonization) hospitalized between March and September 2012 in different units at a hospital in Bulgaria. They all produced the carbapenemase NDM-1 and the extended-spectrum-β-lactamase CTX-M-15, together with the 16S rRNA methylase RmtB, conferring high-level resistance to all...
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In: New Microbes and New Infections, 2014, vol. 2, no. 2, p. 50–51
We report here the first identification of the worldwide spread of Klebsiella pneumoniae carbapenemase-2-producing and carbapenem-resistant K. pneumoniae clone ST258 in Turkey, a country where the distantly-related carbapenemase OXA-48 is known to be endemic. Worryingly, this isolate was also resistant to colistin, now considered to be the last-resort antibiotic for carbapenem-resistant isolates.
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In: Antimicrobial Agents and Chemotherapy, 2014, vol. 58, no. 2, p. 1269–1269
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In: Antimicrobial Agents and Chemotherapy, 2014, vol. 58, no. 1, p. 618–619
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In: Journal of Clinical Microbiology, 2014, p. JCM.00594–14
Multidrug-resistant Acinetobacter baumannii isolates, and particularly carbapenemase-producing isolates, are increasingly reported worldwide. The biochemically-based Carba NP test, extensively validated for detection of carbapenemase producers among Enterobacteriaceae and Pseudomonas spp., has been modified for the detection of carbapenemase production in Acinetobacter spp. A collection of 151...
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In: Diagnostic Microbiology and Infectious Disease, 2013, vol. 77, no. 3, p. 200–201
The performance of Etest KPC and MBL strips (bioMérieux) was evaluated as compared to other phenotypic tests for detecting carbapenemases of the KPC-type and metallo-β-lactamases, respectively, on 133 well-characterized enterobacterial isolates. KPC and meropenem-containing MP/MPI Etest had high sensitivity (>92 %) and specificity (>97 %).
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