Lancet:埃博拉疫苗100%有效,埃博拉病毒大限已至!

2015-08-05 sunshine 译 MedSci原创

Lancet:埃博拉疫苗100%有效,埃博拉病毒大限已至!近日,Lancet发表了埃博拉疫苗大样本试验研究的结果,其疫苗效果远超研究人员的预期。据本实验的的研究结果显示埃博拉疫苗100%有效,鉴于试验结果如此理想,试验目前已经终止,疫苗现已用于控制疾病的传播。该疫苗是由制药公司巨头Merck通过相当标准的方法所研制。研究人员重组了一种无害病毒(水泡性口膜炎病毒或VSV),携带有表达埃博拉病毒主要表


近日,Lancet发表了埃博拉疫苗大样本试验研究的结果:埃博拉疫苗效果远超研究人员的预期。据本试验的研究结果显示埃博拉疫苗100%有效,鉴于试验结果如此理想,试验目前已经终止,疫苗现已被用于控制疾病的传播。

该疫苗是由制药公司巨头Merck通过标准的方法所研制。研究人员重组了一种无害病毒(水泡性口膜炎病毒或VSV),该病毒携带有表达埃博拉病毒主要表面蛋白(简称为糖蛋白)的基因。疫苗进入人体后便可引发人体产生不仅针对VSV还可针对埃博拉糖蛋白的免疫反应。理想情况下,感染一旦被清除,免疫系统便可识别VSV及埃博拉病毒。

试验采用了一种称为“环状接种”的设计:一旦发现感染的个体,通过这种“环状接种”设计确定其可能接触的个体。这些人与埃博拉感染者共同生活,在埃博拉患者出现感染症状后与其有所接触,或接触了感染者的衣物,被褥或体液。

研究过程中,发现了90个“环状接种”人群,共涉及到7651个人,将其随机分配至两组中。A组立即接受疫苗接种,B组21天以后接受疫苗接种。在接下来的几周里进行6次随访追踪,观察受试者是否发生了感染,并探究疫苗本身是否会对机体产生副作用。

首次接种后的第10天后,疫苗的效果非常明显。B组确诊了16例感染者;而A组并未出现埃博拉病毒感染者。最终研究人员确定了75例埃博拉病毒感染者,其中6例出现在A组,但是这6例患者并未接种过疫苗,可能是由于患者并未提供知情同意亦或是后勤出了问题。

从试验结果分析来看疫苗应该对人体无害,尽管实验过程中有43名受试者出现了严重的不良事件,但是其中大部分人不良事件的出现与疫苗并无关系(“不良事件”包括了车祸等),唯一一个受试者出现了似乎与疫苗有关的不良反应——发烧。试验过程中还发现受试者接种疫苗后疫苗在阻止病毒进一步扩散时会产生一种群体免疫反应,但是由于试验样本量不足,这一结果发现并未达到统计学意义。

然而这一切都是非常有意义的,也许最重要的发现是,接种程序可在资源贫瘠情况危急的情况下开展。几内亚埃博拉疫情协调员表示,“这是几内亚送给非洲和世界的礼物。几内亚贡献了成千上万的志愿者、医生、数据管理者以及社区动员者,所有的这些共同促进了埃博拉疫苗的发现。”

试验的设计基础——快速识别病例及其可能接触人群——可有效地防止疾病的爆发(曾有效用于消灭天花)。因此,试验本身为未来埃博拉病毒的控制提供了一个模型,而且通过这个试验所获得的经验是无价的。值得注意的是,我们设计应接受即刻疫苗接种的人群中仅有一半人群真正接受了疫苗接种,所以想更好地完成试验仍需要很多工作要做。但是,不可否认的是,“这的确是个极其有前景的发展,”WHO 总干事Margaret Chan博士说道。

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    2016-05-06 howi
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1650340, encodeId=0fa9165034099, content=<a href='/topic/show?id=9e424155935' target=_blank style='color:#2F92EE;'>#埃博拉病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41559, encryptionId=9e424155935, topicName=埃博拉病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=639b24003788, createdName=tcm107hq, createdTime=Tue May 24 11:06:00 CST 2016, time=2016-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1828192, encodeId=db4f18281920d, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Fri May 06 03:06:00 CST 2016, time=2016-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296447, encodeId=9545129644ef0, content=<a href='/topic/show?id=76f941560d7' target=_blank style='color:#2F92EE;'>#埃博拉病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41560, encryptionId=76f941560d7, topicName=埃博拉病毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85aa264, createdName=redcrab, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460051, encodeId=9c88146005169, content=<a href='/topic/show?id=d44f415583a' target=_blank style='color:#2F92EE;'>#埃博拉疫苗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41558, encryptionId=d44f415583a, topicName=埃博拉疫苗)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=78136234994, createdName=yourmama, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=35165, encodeId=910335165a6, content=期待有更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=156, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=332823945, createdName=hlycom3356, createdTime=Thu Aug 06 23:25:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34689, encodeId=363534689cd, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=109, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200609/ef6a57dbe7f1489dad7446b7c5217858/d5e4fe65996c4446a029b0f5d056abb1.jpg, createdBy=6b011518214, createdName=午夜星河, createdTime=Thu Aug 06 09:21:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34667, encodeId=43663466e11, content=good, beContent=null, objectType=article, channel=null, level=null, likeNumber=126, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=20bb1630807, createdName=qwer123, createdTime=Wed Aug 05 21:51:00 CST 2015, time=2015-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34585, encodeId=58a734585e2, content=不知单剂次费用如何?若便宜可以继续在疫区做队列啊, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9e0b1603164, createdName=lovejing, createdTime=Wed Aug 05 18:25:00 CST 2015, time=2015-08-05, status=1, ipAttribution=)]
    2015-08-06 hlycom3356

    期待有更多研究

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1650340, encodeId=0fa9165034099, content=<a href='/topic/show?id=9e424155935' target=_blank style='color:#2F92EE;'>#埃博拉病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41559, encryptionId=9e424155935, topicName=埃博拉病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=639b24003788, createdName=tcm107hq, createdTime=Tue May 24 11:06:00 CST 2016, time=2016-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1828192, encodeId=db4f18281920d, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Fri May 06 03:06:00 CST 2016, time=2016-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296447, encodeId=9545129644ef0, content=<a href='/topic/show?id=76f941560d7' target=_blank style='color:#2F92EE;'>#埃博拉病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41560, encryptionId=76f941560d7, topicName=埃博拉病毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85aa264, createdName=redcrab, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460051, encodeId=9c88146005169, content=<a href='/topic/show?id=d44f415583a' target=_blank style='color:#2F92EE;'>#埃博拉疫苗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41558, encryptionId=d44f415583a, topicName=埃博拉疫苗)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=78136234994, createdName=yourmama, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=35165, encodeId=910335165a6, content=期待有更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=156, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=332823945, createdName=hlycom3356, createdTime=Thu Aug 06 23:25:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34689, encodeId=363534689cd, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=109, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200609/ef6a57dbe7f1489dad7446b7c5217858/d5e4fe65996c4446a029b0f5d056abb1.jpg, createdBy=6b011518214, createdName=午夜星河, createdTime=Thu Aug 06 09:21:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34667, encodeId=43663466e11, content=good, beContent=null, objectType=article, channel=null, level=null, likeNumber=126, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=20bb1630807, createdName=qwer123, createdTime=Wed Aug 05 21:51:00 CST 2015, time=2015-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34585, encodeId=58a734585e2, content=不知单剂次费用如何?若便宜可以继续在疫区做队列啊, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9e0b1603164, createdName=lovejing, createdTime=Wed Aug 05 18:25:00 CST 2015, time=2015-08-05, status=1, ipAttribution=)]
    2015-08-06 午夜星河

    厉害

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=1650340, encodeId=0fa9165034099, content=<a href='/topic/show?id=9e424155935' target=_blank style='color:#2F92EE;'>#埃博拉病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41559, encryptionId=9e424155935, topicName=埃博拉病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=639b24003788, createdName=tcm107hq, createdTime=Tue May 24 11:06:00 CST 2016, time=2016-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1828192, encodeId=db4f18281920d, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Fri May 06 03:06:00 CST 2016, time=2016-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296447, encodeId=9545129644ef0, content=<a href='/topic/show?id=76f941560d7' target=_blank style='color:#2F92EE;'>#埃博拉病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41560, encryptionId=76f941560d7, topicName=埃博拉病毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85aa264, createdName=redcrab, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460051, encodeId=9c88146005169, content=<a href='/topic/show?id=d44f415583a' target=_blank style='color:#2F92EE;'>#埃博拉疫苗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41558, encryptionId=d44f415583a, topicName=埃博拉疫苗)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=78136234994, createdName=yourmama, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=35165, encodeId=910335165a6, content=期待有更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=156, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=332823945, createdName=hlycom3356, createdTime=Thu Aug 06 23:25:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34689, encodeId=363534689cd, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=109, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200609/ef6a57dbe7f1489dad7446b7c5217858/d5e4fe65996c4446a029b0f5d056abb1.jpg, createdBy=6b011518214, createdName=午夜星河, createdTime=Thu Aug 06 09:21:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34667, encodeId=43663466e11, content=good, beContent=null, objectType=article, channel=null, level=null, likeNumber=126, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=20bb1630807, createdName=qwer123, createdTime=Wed Aug 05 21:51:00 CST 2015, time=2015-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34585, encodeId=58a734585e2, content=不知单剂次费用如何?若便宜可以继续在疫区做队列啊, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9e0b1603164, createdName=lovejing, createdTime=Wed Aug 05 18:25:00 CST 2015, time=2015-08-05, status=1, ipAttribution=)]
    2015-08-05 qwer123

    good

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=1650340, encodeId=0fa9165034099, content=<a href='/topic/show?id=9e424155935' target=_blank style='color:#2F92EE;'>#埃博拉病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41559, encryptionId=9e424155935, topicName=埃博拉病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=639b24003788, createdName=tcm107hq, createdTime=Tue May 24 11:06:00 CST 2016, time=2016-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1828192, encodeId=db4f18281920d, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Fri May 06 03:06:00 CST 2016, time=2016-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296447, encodeId=9545129644ef0, content=<a href='/topic/show?id=76f941560d7' target=_blank style='color:#2F92EE;'>#埃博拉病毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41560, encryptionId=76f941560d7, topicName=埃博拉病毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85aa264, createdName=redcrab, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460051, encodeId=9c88146005169, content=<a href='/topic/show?id=d44f415583a' target=_blank style='color:#2F92EE;'>#埃博拉疫苗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41558, encryptionId=d44f415583a, topicName=埃博拉疫苗)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=78136234994, createdName=yourmama, createdTime=Fri Aug 07 09:06:00 CST 2015, time=2015-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=35165, encodeId=910335165a6, content=期待有更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=156, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=332823945, createdName=hlycom3356, createdTime=Thu Aug 06 23:25:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34689, encodeId=363534689cd, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=109, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200609/ef6a57dbe7f1489dad7446b7c5217858/d5e4fe65996c4446a029b0f5d056abb1.jpg, createdBy=6b011518214, createdName=午夜星河, createdTime=Thu Aug 06 09:21:00 CST 2015, time=2015-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34667, encodeId=43663466e11, content=good, beContent=null, objectType=article, channel=null, level=null, likeNumber=126, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=20bb1630807, createdName=qwer123, createdTime=Wed Aug 05 21:51:00 CST 2015, time=2015-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34585, encodeId=58a734585e2, content=不知单剂次费用如何?若便宜可以继续在疫区做队列啊, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9e0b1603164, createdName=lovejing, createdTime=Wed Aug 05 18:25:00 CST 2015, time=2015-08-05, status=1, ipAttribution=)]
    2015-08-05 lovejing

    不知单剂次费用如何?若便宜可以继续在疫区做队列啊

    0

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