CMI:养老院居民全剂量接种Comirnaty®COVID-19疫苗后对SARS-CoV-2的免疫反应

2021-10-11 从医路漫漫 MedSci原创

老年人优先接种SARS-CoV-2疫苗,因为他们有患严重COVID-19的风险增加。在养老院SARS-CoV-2信使RNA(mRNA)疫苗,导致了SARS-CoV-2感染率,尤其是COVID-19感染

背景:老年人优先接种SARS-CoV-2疫苗,因为他们有患严重COVID-19的风险增加。在养老院SARS-CoV-2信使RNA(mRNA)疫苗,导致了SARS-CoV-2感染率,尤其是COVID-19感染率的大幅下降。虽然这一效应主要是由居民和工作人员的疫苗覆盖率来解释的,但严格的非药物感染控制措施也有助于预防85名未接种疫苗的居民和那些对疫苗的非最佳或检测不到SARS-CoV-2特异性免疫反应的人的感染。

   目前关于SARS-CoV-2 mRNA疫苗在伴有合并症和衰弱的老年人中的免疫原性的信息有限。Comirnaty®COVID-19疫苗(辉瑞- bnt162b2) I期试验的数据表明,老年人的抗体反应低于年轻人。到2021年3月,瓦伦西亚社区(VC)建立了一项COVID-19疫苗研究计划(ProVaVac),该计划的任务之一是评估疗养院居民中SARS-CoV-2 mRNA疫苗的免疫原性。在此报告这次调查的结果。

目的:本研究旨在检测两剂Comirnaty®COVID-19疫苗在养老院老年人中的SARS-CoV-2免疫应答。

方法:前瞻性队列研究的代表性样本来自瓦伦西亚养老院(n=881;男性:271名,女性610名;中位年龄为86岁),采用随机单阶段整群抽样方法。侧流免疫层析成像装置(LFIC)(现场COVID-19 IgG/IgM快速检测;采用CTK BIOTECH, Poway, CA, USA)作为检测全血中SARS-CoV-2-Spike(S)特异性抗体的一线试验。对LFIC阴性的居民进行静脉穿刺,并通过罗氏Elecsys®Anti-SARS-CoV-2 S(罗氏诊断公司,Pleasanton, CA, USA)检测SARS-CoV-2反应抗体和T细胞的存在,以及LIAISON®SARS-CoV-2 TrimericS IgG (DiasorinS.p.)检测。A, Saluggia,意大利),并分别采用流式细胞术检测。

结果:在疫苗完全接种后99天(范围17-125天)内,康复者和养老院居民SARS-CoV-2- s抗体检出率分别为99.6%(283/289)和98.3%(587/597)。五分之三缺乏SARS-CoV-2-S抗体的居民有可检测到的s反应性CD8+和/或CD4+ T细胞。检测到SARS-CoV-2抗体的50/50和40/50参与者也分别有SARS-CoV-2- s反应性IFN-γ产生CD4+和CD8+ T细胞。

表1 在SARS-CoV-2-naïve或康复疗养院居民全剂量接种Comirnaty®后,通过横向流动免疫层析测定SARS-CoV-2 IgG应答

表2 流式细胞术检测全剂量Comirnaty®疫苗接种后可检测到SARS-CoV-2-S抗体的养老院居民的SARS-CoV-2-S反应性T细胞

 

图 根据罗氏Elecsys®抗sars - cov -2-S免疫分析定量的sars - cov -2-S反应抗体水平,侧流免疫层析(LFIC) IgG谱线强度。线的强度是用一个4级的量表进行视觉评分的。从右到左0,不可检测;1+,弱阳性(测试带强度低于对照带强度);2+,阳性结果(测试带强度等于控制线);3+,强阳性结果(测试带强度大于控制线)。

结论:Comirnaty®新冠肺炎疫苗对疗养院居民具有很强的免疫原性。

原文出处:

 Albert E,  Burgos JS,  Peiró S,et al,Immunological response against SARS-CoV-2 following full-dose administration of Comirnaty® COVID-19 vaccine in nursing home residents.Clin Microbiol Infect 2021 Oct 04

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    2021-12-04 liye789132251
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    2022-05-17 smallant2002
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    2022-06-22 hukaixun
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    2021-10-10 cnxcy
  5. [GetPortalCommentsPageByObjectIdResponse(id=1885439, encodeId=62a8188543906, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Dec 04 14:43:06 CST 2021, time=2021-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930840, encodeId=bdbb193084036, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Tue May 17 03:43:06 CST 2022, time=2022-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938043, encodeId=af9c19380430d, content=<a href='/topic/show?id=02de15902d3' target=_blank style='color:#2F92EE;'>#SARS-CoV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, 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=Wed Jun 22 02:43:06 CST 2022, time=2022-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1280252, encodeId=6138128025297, content=<a href='/topic/show?id=2bbe289846f' target=_blank style='color:#2F92EE;'>#免疫反应#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28984, encryptionId=2bbe289846f, topicName=免疫反应)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=827b160, createdName=cnxcy, createdTime=Sun Oct 10 10:43:06 CST 2021, time=2021-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312393, encodeId=74fa13123936a, content=<a href='/topic/show?id=e5571193321' target=_blank style='color:#2F92EE;'>#miRNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11933, encryptionId=e5571193321, topicName=miRNA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87d405, createdName=Homburg, createdTime=Sun Oct 10 10:43:06 CST 2021, time=2021-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1321311, encodeId=d558132131122, content=<a href='/topic/show?id=ac0d159007f' target=_blank style='color:#2F92EE;'>#SARS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, 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=Sun Oct 10 10:43:06 CST 2021, time=2021-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1455522, encodeId=5bfe1455522db, content=<a href='/topic/show?id=1e35302e085' target=_blank style='color:#2F92EE;'>#养老院#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30270, encryptionId=1e35302e085, topicName=养老院)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f2715667301, createdName=tulenzi, createdTime=Sun Oct 10 10:43:06 CST 2021, time=2021-10-10, status=1, ipAttribution=)]
    2021-10-10 Homburg
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    2021-10-10 小刀医生
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    2021-10-10 tulenzi

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