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    • SARS-CoV-2 Omicron变异株TaqMan探针法荧光定量RT-PCR的建立及应用

    孙艳红,李文龙,陈瑶瑶,伏晓庆,赵晓南,李多

    Chinese Journal of Microbiology and Immunology（2023）

    Cited 0|Views37
    Abstract
    目的:开发和评估一种快速、简单和经济的替代测序的Omicron变异株荧光定量RT-PCR(RT-qPCR)。方法:针对SARS-CoV-2 ORF1ab保守区域、Omicron变异株S基因高频共同突变位点设计引物和TaqMan探针，建立Omicron株RT-qPCR检测方法，用经全基因组测序确定型别的样本进行验证，并对该方法的特异度和敏感度进行评估。结果:本研究建立的RT-qPCR分型法可以将Omicron变异株与包括早期A型流行株、Alpha和Delta变异株在内的SARS-CoV-2毒株进行区分，结果与全基因组测序结果一致，符合率为100.00%(28/28)；与其他6种呼吸道病毒及柯萨奇病毒A组16型无交叉反应；该方法RNA标准品在10 9~10 3拷贝/μl之间呈良好的线性关系，相关系数 R2均大于0.99，检测敏感度为10 3拷贝/μl。 结论:本研究设计的针对Omicron变异株的RT-qPCR敏感度高且特异度好，在任何可以进行PCR检测的实验室中都容易开展，可极大地促进对Omicron变异株的传播监测。
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    SARS-CoV-2,Omicron variants,RT-qPCR
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    • Pretraining has recently greatly promoted the development of natural language processing (NLP)
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