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第42卷第11期 南京医科大学学报(自然科学版)
2022年11月 Journal of Nanjing Medical University(Natural Sciences) ·1621 ·
·公共卫生与预防医学研究·
新型冠状病毒特异性抗体微流控法定量检测能力评价及应用
秦圆方 ,彭杰夫 ,田 华 ,蒋 屹 ,陈思羽 ,朱立国 1*
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1 江苏省疾病预防控制中心,江苏 南京 210009;厦门大学公共卫生学院,福建 厦门 361102
[摘 要] 目的:建立并评价新型冠状病毒即严重急性呼吸综合征冠状病毒2型(severe acute respiratory syndrome coronavirus
2,SARS⁃CoV⁃2)特异性抗体定量检测方法,为新型冠状病毒肺炎(corona virus disease⁃2019,COVID⁃19)疫情防控提供血清学研
判支持。方法:采集2020年1—2月SARS⁃CoV⁃2感染者及其密切接触者的血清和咽拭子样本,分别用RT⁃qPCR法检测SARS⁃
CoV⁃2核酸,微流控法和胶体金法检测SARS⁃CoV⁃2特异性抗体,并比较分析检测结果的一致性。结果:微流控法、胶体金法检
测SARS⁃CoV⁃2特异性IgG抗体的结果均与RT⁃qPCR方法一致。发病早中期(<14 d)与后期(≥14 d)微流控法IgG抗体阳性率
差异有统计学意义。结论:微流控法是一种新型可定量的SARS⁃CoV⁃2抗体检测法,检测结果准确且耗时短。
[关键词] 新型冠状病毒;微流控法;胶体金法
[中图分类号] R446.62 [文献标志码] A [文章编号] 1007⁃4368(2022)11⁃1621⁃06
doi:10.7655/NYDXBNS20221120
Evaluation and application of a novel microfluidic method to detect COVID⁃19 antibodies
quantitatively
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QIN Yuanfang ,PENG Jiefu ,TIAN Hua ,JIANG Yi ,CHEN Siyu ,ZHU Liguo 1*
Jiangsu Provincial Center for Disease Control and Prevention,Jiangsu 210009;School of Public Health,Xiamen
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University,Xiamen 361102,China
[Abstract] Objective:This study aims to establish and evaluate antibody quantitative detection methods of severe acute respiratory
syndrome coronavirus 2(SARS⁃CoV⁃2),in order to provide serological data base for corona virus disease⁃2019(COVID⁃19)detection
and prevention. Methods:The serum and throat swab samples of SARS⁃CoV⁃2 infected persons and their close contacts from January
to February 2020 were collected,and the SARS⁃CoV⁃2 nucleic acid was detected by RT⁃qPCR,the SARS⁃CoV⁃2 specific antibody was
detected by microfluidic method and colloidal gold method,respectively,and the consistency of the results was compared and analyzed.
Results:The results of detection of SARS ⁃ CoV ⁃ 2 specific IgG antibody by microfluidic method and colloidal gold method were
consistent with those by RT⁃qPCR,but there were significant differences in IgG positive rates between the early⁃middle and the late
stages by the microfluidic method. Conclusion:As a novel quantitative way to detect SARS⁃CoV⁃2 antibodies,the microfluidic method
is brief and accurate.
[Key words] SARS⁃CoV⁃2;microfluidic method;colloidal gold method
[J Nanjing Med Univ,2022,42(11):1621⁃1626]
2019 年出现的由新型冠状病毒即严重急性呼 在全球暴发并加速扩散流行 [1-2] ,现已有上亿人感
[3]
吸综合征冠状病毒 2 型(severe acute respiratory syn⁃ 染,死亡数百万人,对社会产生极大影响 ,给世界
[4]
drome coronavirus 2,SARS⁃CoV⁃2)传染引起的新型冠 各国造成巨大的疾病负担 。准确快速开展血清学
状病毒肺炎(corona virus disease 2019,COVID⁃19), 检测,尽早发现感染者 [5-6] ,不仅能及时有效治疗患
者,还能更有效地进行传染病防控 [7-8] 。
[基金项目] 江苏省社会发展项目(BE2021739)
我国《新型冠状病毒肺炎防控方案(第八版)》
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通信作者(Corresponding author),E⁃mail:zhuliguo2002@163.
com (联防联控机制综发〔2021〕51号)明确提出:未接种