检验医学 ›› 2020, Vol. 35 ›› Issue (7): 633-636.DOI: 10.3969/j.issn.1673-8640.2020.07.001

• 临床应用研究·论著 •    下一篇

郑州市23例SARS-CoV-2核酸单靶标阳性标本的跟踪检测分析

牛卫东, 许太彬, 孙丽梅, 安戈, 史军, 李羿, 赵瑞臻   

  1. 郑州市疾病预防控制中心,河南 郑州 450007
  • 收稿日期:2020-03-26 出版日期:2020-07-30 发布日期:2020-08-04
  • 作者简介:null

    作者简介:牛卫东,男,1971年生,硕士,副主任技师,主要从事微生物检验工作。

Tracking detection analysis of 23 cases of SARS-CoV-2 nucleic acid single target positive samples in Zhengzhou

NIU Weidong, XU Taibin, SUN Limei, AN Yi, SHI Jun, LI Yi, ZHAO Ruizhen   

  1. Zhengzhou Center for Disease Control and Prevention,Zhengzhou 450007,Henan,China
  • Received:2020-03-26 Online:2020-07-30 Published:2020-08-04

摘要:

目的 对郑州市23例严重急性呼吸综合征冠状病毒2(SARS-CoV-2)核酸单靶标阳性标本进行跟踪检测分析,为实验室检测提供参考。方法 按照《新型冠状病毒肺炎防控方案》采集新型冠状病毒肺炎(COVID-19)疑似患者的鼻拭子或咽拭子,提取SARS-CoV-2核酸并采用实时荧光逆转录聚合酶链反应(RT-PCR)检测。对6例开放读码框1abORF1ab)基因单靶标阳性和17例核壳蛋白(N)基因单靶标阳性患者进行重新采样检测。结果 首检23例SARS-CoV-2核酸单靶标阳性的标本中有8例疑似病例在随后的重新采样检测中被确认为SARS-CoV-2核酸阳性,重新采样检测阳性率为34.78%。结论 COVID-19同种类型标本2次采样检测中均出现单靶标阳性的检测结果时,应该慎重对待,建议重新采样跟踪检测。

关键词: 严重急性呼吸综合征冠状病毒2, 新型冠状病毒肺炎, 实时荧光逆转录聚合酶链反应, 单靶标阳性

Abstract:

Objective To perform tracking detection from the first detection of 23 cases of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) nucleic acid single target positive samples in Zhengzhou,and to provide a reference for clinical laboratories. Methods According to the Pneumonia Prevention and Control Plan for Novel Coronavirus Infection,nasal swab and oropharyngeal swab samples from suspected corona virus disease 2019 (COVID-19) patients were collected. The nucleic acid was extracted and detected by real-time fluorescence reverse transcription polymerase chain reaction(RT-PCR). Totally,6 open reading frame lab(ORF1ab) gene and 17 nucleocapsid protein(N) gene single target positive samples were detected. Results Totally,8 samples were positive in the tracking detection,and the positive conversion rate was 34.78%. Conclusions The samples detected single target positive for 2 times should be treated seriously and detected for tracking detection.

Key words: Severe acute respiratory syndrome coronavirus 2, Corona virus disease 2019, Real-time fluorescence reverse transcription polymerase chain reaction, Single target positivity

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