bird flu禽流感英语PPT介绍.ppt

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1、WhatistheinfluenzaA(H7N9)virus?InfluenzaAH7virusesareagroupofinfluenzavirusesthatnormallycirculateamongbirds.TheinfluenzaA(H7N9)virusisonesubgroupamongthelargergroupofH7viruses.AlthoughsomeH7viruses(H7N2,H7N3andH7N7)haveoccasionallybeenfoundtoinfecthumans,nohumaninfectionswithH7N9viru

2、seshavebeenreporteduntilrecentreportsfromChina.什么是甲型H7N9流感病毒？甲型流感的H7病毒是一组通常在鸟类中传播的流感病毒。甲型H7N9流感病毒属于H7病毒大类下的一个亚群。虽然偶尔会有某些H7病毒(H7N2、H7N3、H7N7)感染人类的报告，但过去没有人类感染H7N9病毒的报告，直到中国最近报告出现了这种病例。WhatarethemainsymptomsofhumaninfectionwithinfluenzaA(H7N9)virus?Thusfar,mostpatientswiththisinfectionh

3、avehadseverepneumonia.Symptomsincludefever,coughandshortnessofbreath.However,informationisstilllimitedaboutthefullspectrumofdiseasethatinfectionwithinfluenzaA(H7N9)virusmightcause.到目前为止，感染H7N9病毒的绝大多数病人会出现严重肺炎，症状包括发烧、咳嗽、气短。不过，对于感染甲型H7N9流感病毒后可能产生的全部症状的认知仍是有限的。Allthreevirusesareinfluenza

4、Avirusesbuttheyaredistinctfromeachother.H7N9andH5N1areconsideredanimalinfluenzavirusesthatsometimesinfectpeople.H1N1virusescanbedividedintothosethatnormallyinfectpeopleandthosethatnormallyinfectanimals.这三种病毒都是甲型流感病毒，但它们有明显区别。H7N9和H5N1被认为是动物流感病毒，只是偶尔会感染人类。H1N1病毒可以分为通常感染人类与通常感染动物的两种。Ist

5、heinfluenzaA(H7N9)virusdifferentfrominfluenzaA(H1N1)andA(H5N1)viruses?Someoftheconfirmedcaseshadcontactwithanimalsorwithananimalenvironment.ThevirushasbeenfoundinapigeoninamarketinShanghai.Itisnotyetknownhowpersonsbecameinfected.Thepossibilityofanimal-to-humanandperson-to-persontransm

6、issionisbeinginvestigated.一些已被确认的病例有与动物或者动物所处环境接触的经历。上海禽类市场的鸽子中发现了H7N9病毒。但人是如何被感染的尚不清楚。现在正在调查动物传染人的可能性，以及人传人的可能性。HowdidpeoplebecomeinfectedwiththeinfluenzaA(H7N9)virus?HowcaninfectionwithinfluenzaA(H7N9)virusbeprevented?Althoughboththesourceofinfectionandthemodeoftransmissionareuncert

7、ain,itisprudenttofollowbasichygienicpracticestopreventinfection.Theyincludehandandrespiratoryhygieneandfoodsafetymeasures.尽管感染的来源及传播模式尚不能确定，但注意以下基本卫生来预防感染是一种谨慎的做法，包括手部卫生、呼吸卫生、食品安全措施.Handhygiene:Washyourhandsbefore,during,andafteryoupreparefood;beforeyoueat;afteryouusethetoilet;afterha

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