NEJM:新冠肺炎血清抗体状态与二次感染风险研究

2020-12-26 MedSci原创 MedSci原创

对于新冠肺炎血清学抗体阳性的人群,其随后6个月内二次感染的风险较低

严重急性呼吸综合征冠状病毒2(SARS-Cov-2)感染后,大多数病例可产生免疫应答反应,但抗体保护的效果及持续时间尚不清楚。近日研究人员对英国牛津大学医院的医疗工作人员进行随访,考察了新冠肺炎血清学阳性或血清学阴性,与有新冠肺炎症状或无症状感染和经聚合酶链反应(PCR)证实的SARS-cov-2二次感染之间的关系。
 
医护人员基线的血清学抗体情况通过Spike蛋白抗体和IgG抗体进行评估,随访期为31周。根据抗体状况,年龄、性别和发病率随时间的变化,评估PCR阳性检测结果和症状性感染的相对发生率。
 
12541名健康的医护人员接受抗体检测,其中阴性11364人,阳性1265人,而88人随访期间出现血清转化。随访期间,223名Spike蛋白抗体阴性的医护人员经PCR证实核酸阳性(每10000参与者随访天中1.09例),其中100人是无症状的,123人有新冠肺炎症状,仅2名Spike蛋白抗体阳性的医护人员经PCR证实核酸阳性(每10000参与者随访天中0.13例),均是有症状的患者(症状性感染风险比值比0.11)。Spike蛋白抗体阳性的医护人员中,未发现无症状感染者。基线采用Spike蛋白抗体、IgG抗体或二者联合使用进行血清学评估不影响研究结论。
抗体状态与二次感染风险
研究认为,对于新冠肺炎血清学抗体阳性的人群,其随后6个月内二次感染的风险较低。
 
原始出处:
 
Sheila F. Lumley et al. Antibody Status and Incidence of SARS-CoV-2 Infection in Health Care Workers. N Engl J Med, December 23, 2020.

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    2020-12-27 医路顺丰

    很好的文章,学习了

    0

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    2020-12-26 lovetcm

    #新冠肺炎#如果抗体能维持9个月,疫苗可能维持一年,甚至更长,那么人类有可能消灭新冠病毒

    0

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    2020-12-26 公卫新人

    新冠肺炎,疫情何时才能消失

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2055723, encodeId=21912055e2369, content=<a href='/topic/show?id=734110089320' target=_blank style='color:#2F92EE;'>#风险研究#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100893, encryptionId=734110089320, topicName=风险研究)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Mon Feb 08 01:59:36 CST 2021, time=2021-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1993700, encodeId=ab721993e0081, content=<a href='/topic/show?id=00502394328' target=_blank style='color:#2F92EE;'>#二次感染#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23943, encryptionId=00502394328, topicName=二次感染)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=1dbc2500219, createdName=huagfeg, createdTime=Wed Mar 17 23:59:36 CST 2021, time=2021-03-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=911465, encodeId=e3229114653b, content=很好的文章,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201226/95ac6d022b194200b46211c8dd67d7d4/d7639abce33d42f18edacbf9c1818b2b.jpg, createdBy=1c242248512, createdName=医路顺丰, createdTime=Sun Dec 27 22:43:51 CST 2020, time=2020-12-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=911145, encodeId=460b911145ef, content=<a href='/topic/show?id=46ce580e865' target=_blank style='color:#2F92EE;'>#新冠肺炎#</a>如果抗体能维持9个月,疫苗可能维持一年,甚至更长,那么人类有可能消灭新冠病毒, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58078, encryptionId=46ce580e865, topicName=新冠肺炎)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Sat Dec 26 21:37:21 CST 2020, time=2020-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1028920, encodeId=751b1028920c2, content=新冠肺炎,疫情何时才能消失, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=公卫新人, createdTime=Sat Dec 26 16:59:36 CST 2020, time=2020-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1035539, encodeId=fc63103553911, content=顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Sat Dec 26 16:59:36 CST 2020, time=2020-12-26, status=1, ipAttribution=)]
    2020-12-26 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

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