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预防甲型h1n1流感八年级英语作文70词左右简单易懂适合8年级用
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更新时间:2024-04-25 09:37:39
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预防甲型h1n1流感八年级英语作文

70词左右

简单易懂适合8年级用

崔良沂回答:
  Swinefluhasyettoescalateintoaglobalpandemic,buthere'swhattodoifitdoes   5WaystoProtectYourself(andOthers)fromSwineFlu   Expertssaythatthestepsyoushouldtaketoshieldyourselffromswinefluarenotmuchdifferentthanthoseyoumighttaketowardoffseasonalflu.   1.Don'ttouchyourface   Aboveall,keepyourhandsawayfromyoureyes,mouthandnose,allofwhichserveaspathwaysforthevirustoenteryourrespiratorytract,saysAllisonAiello,anepidemiologistattheUniversityofMichiganSchoolofPublicHealthinAnnArbor.   2.Washyourhands   Ifyoumusttouchyourface,scrubyourhands,gettingunderthefingernailsandinsideallcrevices,for20to30secondswithhotsoapandwaterbeforehand,Aiellosays."Inadditiontodislodgingdirtthatmaycontainvirusparticles,soapscontainsurfactants[theprimarycomponentsofdetergents]whichcandamagethelipid[fat]protectingvirusparticles,"sheexplains.Soapshouldthereforebeeffectiveagainstallfluviruses.   3.Useahandsanitizer   Nosinknearby?Thenuseanalcohol-basedhandsanitizer,Aielloadvises.Aboutaquarter-sizespot,rubbedalloverthehandsuntilthesanitizerevaporates(usually10to15seconds),shoulddoit.Alcoholcaninactivatevirusesbydestroyingthestructureoftheirproteins,shenotes.   4.Coveryournoseandmouth   Whensomeonesneezesorcoughs,liquiddropletspackingfluvirusescantravelasfarasthreefeet(onemeter)throughtheairanddescendonyournoseormouth,soit'sbesttomaintainatleastanarm's-lengthdistancewhentalkingtosomeonewhoshowssignsofinfection,saysLouiseDembry,directorofepidemiologyatYale–NewHavenHospitalinConnecticut.Andtoprotectothers,coveryourmouthandnosewithatissuewhenyoucoughorsneeze,andcleanyourhandsafterward,shesays,notingthatvirusescanremaininfectiousforhours,ifnotlonger,whentheylingerontheskinorothersurfacessuchaskeyboardsandsubwaypoles.   5.Considerbuyingamaskincaseyouneeditinthefuture   Frompressphotos,itseemsthatMexico'sentirepopulationhasdonnedsurgicalmasks,buttheverdictisstilloutonhoweffectivetheyareinstemmingthespreadofflu,accordingtoAiello.Someresearchsuggeststhatmasks—eitherthesurgicalvarietyorrespiratorscalledN95'sspeciallydesignedtofilteroutwaterdropletscontainingviruses—reducetheriskofcontractingthefluorotherrespiratorypathogensbyasmuchas80percent,butresearchbyAiello'steamsuggeststhatmasksdolittleunlessusedinconjunctionwithdiligenthandwashing.   AccordingtotheU.S.CentersforDiseaseControlandPrevention,thereis"extremelylimited"dataontheeffectivenessoffacemasksandrespiratorsforblockingfluspreadincommunities.Theagencysuggests,however,thatpeopleconsiderusingthemwhenit'simpossibletoavoid"crowdedsettingsorclosecontactwithothers"inareaswhereswineflutransmissionhasbeenconfirmed:facemasksforcrowdedplacesandrespiratorsforsituationsthatinvolveclosecontactwithpeoplewhohaverespiratoryinfections(caringforasickfamilymember,forexample).
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