期刊
DIAGNOSTICS
卷 11, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/diagnostics11122247
关键词
COVID-19; SARS-CoV-2; diagnostic; RNA extraction method; RT-qPCR assay
资金
- National Medicines Institute [DS8/2021]
This study evaluated two RNA extraction methods and four commercial RT-qPCR assays for detecting SARS-CoV-2 in human upper respiratory tract specimens. The results demonstrated the significant impact of laboratory-selected diagnostic methods on the detection of SARS-CoV-2 with low viral loads in clinical specimens.
COVID-19 was initially reported in China at the end of 2019 and soon thereafter, in March 2020, the WHO declared it a pandemic. Until October 2021, over 240 million COVID-19 cases were recorded, with 4.9 mln deaths. In order to stop the spread of this disease, it is crucial to monitor and detect any infected person. The etiologic agent of COVID-19 is a novel coronavirus called SARS-CoV-2. The gold standard for the detection of the virus is the RT-qPCR method. This study evaluated two RNA extraction methods and four commercial RT-qPCR assays routinely used in diagnostic laboratories for detecting SARS-CoV-2 in human specimens from the upper respiratory tract. We analyzed a panel of 70 clinical samples with varying RNA loads. Our study demonstrated the significant impact of the diagnostic methods selected by the laboratory on the SARS-CoV-2 detection in clinical specimens with low viral loads.
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