Clin Infect Dis:余宏杰课题组在禽流感H7N9病毒人际间传播风险研究领域取得进展

2018-09-10 佚名 复旦大学公共卫生学院

2016-2017年第五波疫情前,H7N9病毒为低致病性禽流感病毒。2017年初,有研究报道,少数人感染禽流感H7N9病例中所分离病毒的HA裂解位点插入了多个碱性氨基酸,提示该病毒已变异为高致病性禽流感病毒。

复旦大学公共卫生学院余宏杰课题组在禽流感H7N9病毒人际间传播风险研究领域取得进展,研究结果以“Assessment of Human-to-Human Transmissibility of Avian Influenza A(H7N9) Virus Across 5 Waves by Analyzing Clusters of Case Patients in Mainland China, 2013–2017”为题于近期发表在 Clinical Infectious Diseases (IF 9.12)

自2013年3月中国发现了全球首例人感染禽流感H7N9病例以来,每年冬春季都会出现一波人感染禽流感H7N9疫情。该病毒可通过基因重配或适应性突变演变成为引起流感大流行的病毒,持续的病毒学和流行病学研究是大流行风险评估的重要内容。

2016-2017年第五波疫情前,H7N9病毒为低致病性禽流感病毒。2017年初,有研究报道,少数人感染禽流感H7N9病例中所分离病毒的HA裂解位点插入了多个碱性氨基酸,提示该病毒已变异为高致病性禽流感病毒。2016-2017年第五波疫情较往年出现的早,地理扩散范围更广,报告的病例数也超过了前四波。因此,第五波疫情中,禽流感H7N9病毒在人与人之间的传播风险是否增强成为尚待解决的科学问题。

本研究通过分析聚集性H7N9疫情的流行病学参数的变化,定量评估H7N9病毒人际间的传播风险是否发生了变化。研究发现,报告的聚集性病例的发病时间分布与散发病例相似。聚集性H7N9疫情的中位病例数为2,最大为3。所有聚集性H7N9疫情的人际传播均未超过2代。与没有血缘关系的亲属相比,有血缘关系的感染禽流感H7N9的相对危险度为1.65(95%置信区间:0.88-3.09),但无统计学差异。假设具有相同的易感性,统计模拟的结果显示,当聚集性H7N9病例占全部病例5.6%时,暴露后人感染禽流感H7N9的风险为4.2%(图A)。禽流感H7N9病毒有效繁殖数上限为0.12(95%置信区间:0.10-0.14),各波次间无统计学差异(χ2 = 1.52, p=0.822)(图B)。



图:五波人感染禽流感H7N9疫情中,感染发病的风险及有效繁殖数上限估计值

(A:聚集性病例占比与感染风险;B:有效繁殖数上限估计值)

本研究表明,随着疫情进展,禽流感H7N9病毒的人际间传播风险并未发生明显变化。尽管第五波疫情中,人感染禽流感H7N9的地理扩散范围更广,报告病例数更多,但相对较小的聚集性疫情病例数和有效繁殖数均提示,第五波疫情中人传人的风险非常有限。本研究定量评估了禽流感H7N9病毒人际间传播风险的变化,为流感大流行的风险评估及防控策略的制定提供了科学证据。余宏杰教授为本文的通讯作者,王锡玲副教授为本文的第一作者。本研究得到国家自然基金委国家杰出青年科学基金项目(81525023)的资助。

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (6)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2060696, encodeId=8fe4206069674, content=<a href='/topic/show?id=4a6d26e30b8' target=_blank style='color:#2F92EE;'>#余宏杰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26730, encryptionId=4a6d26e30b8, topicName=余宏杰)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Mon Aug 12 10:31:00 CST 2019, time=2019-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2055640, encodeId=f7802055640a7, 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=24, 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=Fri Sep 21 12:31:00 CST 2018, time=2018-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012794, encodeId=95562012e9405, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sat Apr 06 20:31:00 CST 2019, time=2019-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1477560, encodeId=e23914e7560f2, content=<a href='/topic/show?id=9f7d8411fc' target=_blank style='color:#2F92EE;'>#H7N9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8411, encryptionId=9f7d8411fc, topicName=H7N9)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e1f27379114, createdName=ms117281293605716, createdTime=Tue Sep 11 15:31:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344333, encodeId=e80a3443338c, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Sep 10 10:08:58 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344244, encodeId=9182344244c2, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/07/16/3b24606172648eea459125cb74754afe.jpg, createdBy=6c022216608, createdName=liumin1987, createdTime=Mon Sep 10 07:15:56 CST 2018, time=2018-09-10, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2060696, encodeId=8fe4206069674, content=<a href='/topic/show?id=4a6d26e30b8' target=_blank style='color:#2F92EE;'>#余宏杰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26730, encryptionId=4a6d26e30b8, topicName=余宏杰)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Mon Aug 12 10:31:00 CST 2019, time=2019-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2055640, encodeId=f7802055640a7, 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=24, 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=Fri Sep 21 12:31:00 CST 2018, time=2018-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012794, encodeId=95562012e9405, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sat Apr 06 20:31:00 CST 2019, time=2019-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1477560, encodeId=e23914e7560f2, content=<a href='/topic/show?id=9f7d8411fc' target=_blank style='color:#2F92EE;'>#H7N9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8411, encryptionId=9f7d8411fc, topicName=H7N9)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e1f27379114, createdName=ms117281293605716, createdTime=Tue Sep 11 15:31:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344333, encodeId=e80a3443338c, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Sep 10 10:08:58 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344244, encodeId=9182344244c2, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/07/16/3b24606172648eea459125cb74754afe.jpg, createdBy=6c022216608, createdName=liumin1987, createdTime=Mon Sep 10 07:15:56 CST 2018, time=2018-09-10, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=2060696, encodeId=8fe4206069674, content=<a href='/topic/show?id=4a6d26e30b8' target=_blank style='color:#2F92EE;'>#余宏杰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26730, encryptionId=4a6d26e30b8, topicName=余宏杰)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Mon Aug 12 10:31:00 CST 2019, time=2019-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2055640, encodeId=f7802055640a7, 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=24, 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=Fri Sep 21 12:31:00 CST 2018, time=2018-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012794, encodeId=95562012e9405, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sat Apr 06 20:31:00 CST 2019, time=2019-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1477560, encodeId=e23914e7560f2, content=<a href='/topic/show?id=9f7d8411fc' target=_blank style='color:#2F92EE;'>#H7N9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8411, encryptionId=9f7d8411fc, topicName=H7N9)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e1f27379114, createdName=ms117281293605716, createdTime=Tue Sep 11 15:31:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344333, encodeId=e80a3443338c, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Sep 10 10:08:58 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344244, encodeId=9182344244c2, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/07/16/3b24606172648eea459125cb74754afe.jpg, createdBy=6c022216608, createdName=liumin1987, createdTime=Mon Sep 10 07:15:56 CST 2018, time=2018-09-10, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=2060696, encodeId=8fe4206069674, content=<a href='/topic/show?id=4a6d26e30b8' target=_blank style='color:#2F92EE;'>#余宏杰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26730, encryptionId=4a6d26e30b8, topicName=余宏杰)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Mon Aug 12 10:31:00 CST 2019, time=2019-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2055640, encodeId=f7802055640a7, 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=24, 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=Fri Sep 21 12:31:00 CST 2018, time=2018-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012794, encodeId=95562012e9405, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sat Apr 06 20:31:00 CST 2019, time=2019-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1477560, encodeId=e23914e7560f2, content=<a href='/topic/show?id=9f7d8411fc' target=_blank style='color:#2F92EE;'>#H7N9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8411, encryptionId=9f7d8411fc, topicName=H7N9)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e1f27379114, createdName=ms117281293605716, createdTime=Tue Sep 11 15:31:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344333, encodeId=e80a3443338c, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Sep 10 10:08:58 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344244, encodeId=9182344244c2, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/07/16/3b24606172648eea459125cb74754afe.jpg, createdBy=6c022216608, createdName=liumin1987, createdTime=Mon Sep 10 07:15:56 CST 2018, time=2018-09-10, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=2060696, encodeId=8fe4206069674, content=<a href='/topic/show?id=4a6d26e30b8' target=_blank style='color:#2F92EE;'>#余宏杰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26730, encryptionId=4a6d26e30b8, topicName=余宏杰)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Mon Aug 12 10:31:00 CST 2019, time=2019-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2055640, encodeId=f7802055640a7, 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=24, 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=Fri Sep 21 12:31:00 CST 2018, time=2018-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012794, encodeId=95562012e9405, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sat Apr 06 20:31:00 CST 2019, time=2019-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1477560, encodeId=e23914e7560f2, content=<a href='/topic/show?id=9f7d8411fc' target=_blank style='color:#2F92EE;'>#H7N9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8411, encryptionId=9f7d8411fc, topicName=H7N9)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e1f27379114, createdName=ms117281293605716, createdTime=Tue Sep 11 15:31:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344333, encodeId=e80a3443338c, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Sep 10 10:08:58 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344244, encodeId=9182344244c2, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/07/16/3b24606172648eea459125cb74754afe.jpg, createdBy=6c022216608, createdName=liumin1987, createdTime=Mon Sep 10 07:15:56 CST 2018, time=2018-09-10, status=1, ipAttribution=)]
    2018-09-10 明月清辉

    谢谢分享,学习了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2060696, encodeId=8fe4206069674, content=<a href='/topic/show?id=4a6d26e30b8' target=_blank style='color:#2F92EE;'>#余宏杰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26730, encryptionId=4a6d26e30b8, topicName=余宏杰)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Mon Aug 12 10:31:00 CST 2019, time=2019-08-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2055640, encodeId=f7802055640a7, 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=24, 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=Fri Sep 21 12:31:00 CST 2018, time=2018-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2012794, encodeId=95562012e9405, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Sat Apr 06 20:31:00 CST 2019, time=2019-04-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1477560, encodeId=e23914e7560f2, content=<a href='/topic/show?id=9f7d8411fc' target=_blank style='color:#2F92EE;'>#H7N9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8411, encryptionId=9f7d8411fc, topicName=H7N9)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e1f27379114, createdName=ms117281293605716, createdTime=Tue Sep 11 15:31:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344333, encodeId=e80a3443338c, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Sep 10 10:08:58 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=344244, encodeId=9182344244c2, content=谢谢分享,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/07/16/3b24606172648eea459125cb74754afe.jpg, createdBy=6c022216608, createdName=liumin1987, createdTime=Mon Sep 10 07:15:56 CST 2018, time=2018-09-10, status=1, ipAttribution=)]
    2018-09-10 liumin1987

    谢谢分享,学习了。

    0

相关资讯

Science Bulletin:全球首例人感染H7N4禽流感病毒病例

近年来,禽流感感染人的事件不断发生,新型禽流感不断出现,严重威胁着公共卫生安全。

PLoS Pathog:禽流感病毒H5N1发病机制研究取得重要进展

在国家自然科学基金项目(项目编号:81425001)等资助下,中日友好医院/首都医科大学曹彬教授团队与英国帝国理工学院Wendy Barclay(温迪?巴克利)教授团队合作,发现高致病性禽流感病毒H5N1在髓系固有免疫细胞内的快速复制是驱动炎症因子风暴产生的重要因素。研究成果以“Internal genes of a highly pathogenic H5N1 influenza virus d

Emerg Infect Dis:广东省疾病预防控制中心广东省公共卫生研究院牛津大学团队解析H7N9禽流感病毒的分子进化、适应性变异及抗原性特征

为解析H7N9病毒的流行特征及生物学特征改变背后的潜在机制,广东省疾病预防控制中心、广东省公共卫生研究院以及牛津大学的研究人员结合广东省的序列数据与其它省份的网络数据对2013年以来H7N9禽流感病毒的分子进化特征,地理传播特征以及潜在的适应性改变进行了系统的分析,同时利用病例血清确认了不同进化分支的H7N9病毒抗原性差异。

Angewandte Chemie:禽流感病原体周围的矿物层可能是人类感染的原因

禽流感可以从鸟类传播给人类; 然而,人类之间的传播是有限的。原因可能是由于鸡的肠中高钙浓度而使病毒获得蛋壳状矿物层。据中国研究人员Angewandte Chemie的报道,这些矿化病毒的传染性明显更高,而且比天然病毒更强壮,热稳定更高。

J Virol:中国学者首次揭示人感染 H7N9 禽流感后细胞免疫记忆特征

2013年我国首次报道人感染H7N9禽流感病例以来,H7N9已成为引起人感染病例数最多的禽流感病毒,其病死率高达38%。关于人感染禽流感H7N9病例恢复后的细胞免疫记忆特征、随时间的动态变化,及其与临床结局的关系尚无报道。

33人死亡!山东发布传染病疫情!近期出现这些症状的要当心!

死亡33人!刚刚山东省卫计委发布了11月传染病疫情通报