(2019) Molecular detection of carbapenem-resistant genes in clinical isolates of Klebsiella pneumoniae. Annali Di Igiene Medicina Preventiva E Di Comunita. pp. 349-355. ISSN 1120-9135
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Abstract
Introduction. The emergence of carbapenem-resistant Klebsiella pneumoniae (CRKP) poses a considerable threat to public health worldwide. The aim of this study was to determine the prevalence of CRKP isolated from clinical specimens by phenotypic and genotypic methods. Methods. In total, 110 consecutive non-repetitive isolates of K. pneumoniae were analyzed. Minimal inhibitory concentrations (MICs) of imipenem were determined. The mechanism of resistance was evaluated by imipenem-EDTA combined disk test and modified Hodge test. PCR method was used for the detection of blaVIM, blaIMP, blaNDM-1, blaOXA-48 and KPC genes. Results. Totally, 8 (7.3 ) isolates were resistant to imipenem, showing MIC >= 4 mu g/mL. Based on imipenem-EDTA combined disk test, all imipenem-resistant isolates were metallo-beta-lactamase (MBL) positive. PCR confirmed that 6 (75) isolates were blaNDM-1 positive. Other resistance genes (blaVIM, blaIMP, blaOXA-48 and KPC) were not detected. Conclusions. Based on this study, the prevalence of CRKP strains was not at a high level, however; continuous monitoring of antibiotic resistance should be performed to control dissemination of CRKP infections.
Item Type: | Article |
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Keywords: | K. pneumoniae Imipenem resistance Carbapenem-resistant Metallo-beta-lactamase metallo-beta-lactamase modified hodge test Health Care Sciences & Services |
Divisions: | |
Page Range: | pp. 349-355 |
Journal or Publication Title: | Annali Di Igiene Medicina Preventiva E Di Comunita |
Volume: | 31 |
Number: | 4 |
Identification Number: | 10.7416/ai.2019.2296 |
ISSN: | 1120-9135 |
Depositing User: | مهندس مهدی شریفی |
URI: | http://eprints.zbmu.ac.ir/id/eprint/3744 |
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