Rapid detection of influenza A viruses using a real-time reverse transcription recombinase-aided amplification assay
文献类型: 外文期刊
第一作者: Cui, Huan
作者: Cui, Huan;Zhang, Cheng;Tu, Fei;Kong, Yunyi;Pu, Jie;Zhang, Lei;Liu, Jun;Guo, Zhendong;Cui, Huan;Zhao, Kui;Zhang, Cheng;Chen, Zhaoliang;Sun, Yuanyuan;Wei, Yujie;Liang, Chuncai;Liu, Juxiang
作者机构:
关键词: reverse transcription recombinase-aided amplification (RT-RAA); influenza A viruses (IAVs); isothermal amplification; rapid diagnosis; clinical diagnosis
期刊名称:FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY ( 影响因子:5.7; 五年影响因子:5.9 )
ISSN: 2235-2988
年卷期: 2023 年 12 卷
页码:
收录情况: SCI
摘要: IntroductionInfluenza A viruses (IAVs) are important pathogens of respiratory infections, causing not only seasonal influenza but also influenza pandemics and posing a global threat to public health. IAVs infection spreads rapidly, widely, and across species, causing huge losses, especially zoonotic IAVs infections that are more harmful. Fast and sensitive detection of IAVs is critical for controlling the spread of this disease. MethodsHere, a real-time reverse transcription recombinase-aided amplification (real-time RT-RAA) assay targeting conserved positions in the matrix protein gene (M gene) of IAVs, is successfully established to detect IAVs. The assay can be completed within 20 min at 42 degrees C. ResultsThe sensitivity of the real-time RT-RAA assay was 142 copies per reaction at 95% probability, which was comparable to the sensitivity of the RT-qPCR assay. The specificity assay showed that the real-time RT-RAA assay was specific to IAVs, and there was no cross-reactivity with other important viruses. In addition, 100%concordance between the real-time RT-RAA and RT-qPCR assays was achieved after testing 120 clinical specimens. DiscussionThe results suggested that the real-time RT-RAA assay we developed was a specific, sensitive and reliable diagnostic tool for the rapid detection of IAVs.
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