检验医学 ›› 2020, Vol. 35 ›› Issue (9): 895-899.DOI: 10.3969/j.issn.1673-8640.2020.09.09

• 临床应用研究·论著 • 上一篇    下一篇

SARS-CoV-2抗体动态监测在COVID-19诊断中的价值

黄绍坤, 钟庆杨, 朱海鹏, 罗润弟, 张见明   

  1. 东莞市第九人民医院检验科,广东 东莞 523000
  • 收稿日期:2020-03-26 出版日期:2020-09-30 发布日期:2020-09-29
  • 作者简介:null

    作者简介:黄绍坤,男,1965年生,主管技师,主要从事临床检验工作。

Roles of dynamic monitoring of SARS-CoV-2 antibodies in the diagnosis of COVID-19

HUANG Shaokun, ZHONG Qingyang, ZHU Haipeng, LUO Rundi, ZHANG Jianming   

  1. Department of Clinical Laboratory,Dongguan Ninth People's Hospital,Dongguan 523000,Guangdong,China
  • Received:2020-03-26 Online:2020-09-30 Published:2020-09-29

摘要:

目的 探讨严重急性呼吸综合征冠状病毒2(SARS-CoV-2)免疫球蛋白(Ig)M和IgG抗体检测在新型冠状病毒肺炎(COVID-19)诊断中的价值。方法 选取COVID-19患者80例,以排除COVID-19的患者20例作为对照组。采用胶体金法检测SARS-CoV-2 IgM抗体和IgG抗体。收集23例COVID-19患者不同时间点采集的样本,并进行SARS-CoV-2抗体检测。结果 SARS-CoV-2 IgM抗体、IgG抗体和IgM+IgG抗体联用的特异性均为100%,敏感性分别为76.3%、81.3%、90.0%,总体符合率分别为81.0%、85.0%、92.0%。在发病7 d内,SARS-CoV-2 IgM抗体、IgG抗体和IgM+IgG抗体联用的敏感性分别为65.0%、70.0%、70.0%;在发病8~14 d,三者的敏感性分别为72.7%、95.5%、95.5%;在发病15 d后,三者的敏感性分别为84.2%、97.4%、97.4%。SARS-CoV-2 IgM抗体在发病后第5~13天出现转阳趋势,在发病第18天后可观察到转阴趋势;SARS-CoV-2 IgG抗体在第5天出现转阳趋势,之后持续阳性。结论 血清SARS-CoV-2 IgM抗体和IgG抗体可作为COVID-19的辅助诊断指标,对其连续监测有助于判断疾病进程。

关键词: 严重急性呼吸综合征冠状病毒2, 抗体, 新型冠状病毒肺炎

Abstract:

Objective To investigate the roles of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) immunoglobulin(Ig) M and IgG antibodies in corona virus disease 2019(COVID-19). Methods A total of 80 patients with COVID-19 were enrolled,and 20 patients without COVID-19 were enrolled as control group. Immunochromatography was used to determine SARS-CoV-2 IgM and IgG antibodies. A total of 23 samples from COVID-19 patients were collected at different time points for the determination of SARS-CoV-2 antibodies. Results The specificities of SARS-CoV-2 IgM antibody,IgG antibody and IgM+IgG antibodies were all 100%,and the sensitivities were 76.3%,81.3% and 90.0%,respectively. The overall consistency rates were 81.0%,85.0% and 92.0%,respectively. Within 7 d of onset,the sensitivities of SARS-CoV-2 IgM antibody,IgG antibody and IgM+IgG antibodies were 65.0%,70.0% and 70.0%,on 8-14 d of onset,the sensitivities were 72.7 %,95.5% and 95.5%,and after 15 d of onset,the sensitivities were 84.2%,97.4% and 97.4%,respectively. SARS-CoV-2 IgM antibody showed a tendency to become positive on the 5th to 13th d after onset,and the tendency to turn negative was observed after the 18th d of onset. SARS-CoV-2 IgG antibody showed a tendency to turn positive on the 5th d and continued to be positive thereafter. Conclusions Serum SARS-CoV-2 IgM and IgG antibodies can be used as auxiliary diagnostic indicators of COVID-19,and the continuous monitoring of them can help with judging disease process.

Key words: Severe acute respiratory syndrome coronavirus 2, Antibody, Corona virus disease 2019

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