Title |
The establishment of a duplex real-time PCR assay for rapid and simultaneous detection of blaNDM and blaKPC genes in bacteria
|
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Published in |
Annals of Clinical Microbiology and Antimicrobials, October 2013
|
DOI | 10.1186/1476-0711-12-30 |
Pubmed ID | |
Authors |
Fen Zheng, Jingjing Sun, Cancan Cheng, Yongyu Rui |
Abstract |
The latest threat of multidrug-resistant Gram-negative bacteria corresponds to the emergence of carbapenemase New Delhi metallo-β-lactamase (NDM) and Klebsiella pneumoniae carbapenemase (KPC) producers. Rapid molecular detection is essential to limit their spread. In this study, a duplex real-time polymerase chain reaction (PCR) that was specific for the detection of blaNDM and blaKPC with the same limit of detection of ten plasmid copies was developed. The assay was linear over eight log dilutions for blaNDM (R2 = 0.971; slope, -3.273) and blaKPC (R2 = 0.992; slope, -2.997) with efficiencies of 102% and 115%, respectively. The assay was validated with 157 clinical isolates and showed 100% concordance with conventional PCR. The excellent performance of the duplex PCR assay makes it a powerful tool for surveillance of the carbapenemases NDM and KPC. |
X Demographics
Geographical breakdown
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United Kingdom | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 27 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Doctoral Student | 5 | 19% |
Researcher | 4 | 15% |
Student > Master | 4 | 15% |
Student > Ph. D. Student | 3 | 11% |
Student > Bachelor | 3 | 11% |
Other | 2 | 7% |
Unknown | 6 | 22% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 7 | 26% |
Biochemistry, Genetics and Molecular Biology | 4 | 15% |
Medicine and Dentistry | 4 | 15% |
Immunology and Microbiology | 3 | 11% |
Engineering | 1 | 4% |
Other | 0 | 0% |
Unknown | 8 | 30% |