期刊
FOLIA MICROBIOLOGICA
卷 56, 期 4, 页码 361-365出版社
SPRINGER
DOI: 10.1007/s12223-011-0057-6
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资金
- Ministry of Health of the Czech Republic [NS9717-4/2008]
Carbapenemase-producing Gram-negative bacteria peak clinical interest due to their ability to hydrolyze most beta-lactams, including carbapenems; moreover, their genes spread through bacterial populations by horizontal transfer. Bacteria with acquired carbapenemase have sporadically been reported in the Czech Republic, so far only in Enterobacteriaceae and Pseudomonas aeruginosa. In this study, we described the first finding of a KPC-2-producing strain of Klebsiella pneumoniae, which was isolated from a surgical wound swab, decubitus ulcer, and urine of a patient previously hospitalized in Greece. The patient underwent various antibiotic therapies including a colistin treatment. However, after approximately 20 days of the colistin therapy, the strain developed a high-level resistance to this drug. All the isolates were indistinguishable by pulsed field gel electrophoretic analysis and belonged to the international clone ST258, which is typical of KPC-producing K. pneumoniae isolates. The bla (KPC-2) gene was located on a Tn4401a transposon variant. The OmpK35 and OmpK36 genes analysis performed due to the high resistance level of the strains to beta-lactams exhibited no changes in their sequence or in their expression when compared with carbapenem-susceptible isolates.
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