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Clinica Chimica Acta:血清和血浆样品中商用抗SARS-CoV-2免疫检测的测试性能比较

2020-08-09 MedSci原创 MedSci原创

由于流行病学、社会和经济方面的原因,评估严重急性呼吸综合征2型冠状病毒(SARS-CoV-2)的感染流行率和免疫力对于调整决策以适应当前需求非常重要。

由于流行病学、社会和经济方面的原因,评估严重急性呼吸综合征2型冠状病毒(SARS-CoV-2)的感染流行率和免疫力对于调整决策以适应当前需求非常重要。因此,用于检测抗SARS-CoV-2抗体的免疫方法可无需FDA授权批准而紧急使用。因此,测试性能的评估主要依靠实验室。这项研究的目的是评估最近推出的商业免疫血清和血浆样本检测试剂的测试性能。

研究人员采用Roche、Euroimmun和表位的抗SARS-CoV-2 IgG免疫测定法分析26例检疫后确诊的SARS-CoV-2感染患者和25例对照组患者的51份血清样本进行检测,以评估诊断的敏感性和特异性。纳入20对匹配的血清和血浆标本,分析不同标本间的可比性。

研究结果发现,总的来说,罗氏、Euroimmun和表位免疫测定的诊断敏感性分别为92.3%、96.2-100%和100%,诊断特异性分别为100%、100%和84-86%。总体上,阳性样本的正确分类为84-96%,阳性样本的正确分类为92.3-95.2%。基于血浆和血清的检测的一致性水平在两种检测方法之间存在差异(表位r2 = 0.97;Euroimmun r2 = 0.91;Roche r2 = 0.76)。

Euroimmun和Roche的免疫分析显示了比表位分析更高的特异性,且诊断敏感性没有明显下降。基于血浆的检测和基于血清的检测之间的显著差别表明需要确定每种标本类型的适当临界值。因此,迫切需要对COVID-19血清学检测进行统一并建立质量标准,以便更加适当地使用和推广。

原始出处:

Verena Haselmann,Maximilian Kittel,Comparison of test performance of commercial anti-SARS-CoV-2 immunoassays in serum and plasma samples

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    2021-06-14 hukaixun
  2. [GetPortalCommentsPageByObjectIdResponse(id=1937945, encodeId=0339193e945b9, content=<a href='/topic/show?id=02de15902d3' target=_blank style='color:#2F92EE;'>#SARS-CoV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15902, encryptionId=02de15902d3, topicName=SARS-CoV)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Jun 14 21:29:11 CST 2021, time=2021-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1850000, encodeId=125f185000063, content=<a href='/topic/show?id=61815385aa' target=_blank style='color:#2F92EE;'>#CTA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5385, encryptionId=61815385aa, topicName=CTA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ec9955, createdName=windight, createdTime=Wed Jan 13 09:29:11 CST 2021, time=2021-01-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1321211, encodeId=555f13212119d, content=<a href='/topic/show?id=ac0d159007f' target=_blank style='color:#2F92EE;'>#SARS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15900, encryptionId=ac0d159007f, topicName=SARS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8306486, createdName=小刀医生, createdTime=Tue Aug 11 13:29:11 CST 2020, time=2020-08-11, status=1, ipAttribution=)]
    2021-01-13 windight
  3. [GetPortalCommentsPageByObjectIdResponse(id=1937945, encodeId=0339193e945b9, content=<a href='/topic/show?id=02de15902d3' target=_blank style='color:#2F92EE;'>#SARS-CoV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15902, encryptionId=02de15902d3, topicName=SARS-CoV)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Jun 14 21:29:11 CST 2021, time=2021-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1850000, encodeId=125f185000063, content=<a href='/topic/show?id=61815385aa' target=_blank style='color:#2F92EE;'>#CTA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5385, encryptionId=61815385aa, topicName=CTA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ec9955, createdName=windight, createdTime=Wed Jan 13 09:29:11 CST 2021, time=2021-01-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1321211, encodeId=555f13212119d, content=<a href='/topic/show?id=ac0d159007f' target=_blank style='color:#2F92EE;'>#SARS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15900, encryptionId=ac0d159007f, topicName=SARS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8306486, createdName=小刀医生, createdTime=Tue Aug 11 13:29:11 CST 2020, time=2020-08-11, status=1, ipAttribution=)]
    2020-08-11 小刀医生
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