最新AIDS艾滋病英语PPT课件教学讲义PPT课件.ppt

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1、AIDS艾滋病英语PPT课件Avirushasbeensweepingtheworldforthepasttwodecades,causingadiseasewhichhaskilledmillionsofpeopleandwhichlookslikelytokillmillionsmore.2医学资料ThevirusiscalledHIV,whichdamagestheimmunesystemandcausesavarietyofsymptomsknownasAIDS.3医学资料HowAIDSspread?7医学资料a)Sexualtransmissionb)Bloodtransmiss

2、ionc)Themother-infanttransmission8医学资料a)SexualtransmissionThemajorityofHIVinfectionsareacquiredthroughunprotectedsexualrelationsbetweenpartners,oneofwhomhasHIV.TheprimarymodeofHIVinfectionworldwideisthroughsexualcontactbetweenmembersoftheoppositesex.9医学资料b)BloodtransmissionThistransmissionrouteisp

3、articularlyrelevanttointravenous(静脉)drugusers,hemophiliacs(血友病患者)andrecipients(接受者)ofbloodtransfusionsandbloodproducts.Sharingandreusingsyringes(注射器)contaminated(污染)withHIV-infectedbloodrepresentsamajorriskforinfectionwithHIV.10医学资料c)Themother-infanttransmissionThetransmissionofthevirusfromthemoth

4、ertothechildcanoccurinuterus（子宫）duringthelastweeksofpregnancyandatchildbirth.11医学资料WhathappensifI’mHIVpositive?12医学资料YoumightnotknowifyougetinfectedbyHIV.Somepeoplegetfever,headache,soremusclesandjoints(肌肉和关节酸痛),stomachache,swollenlymphglands(淋巴腺肿大),oraskinrash(皮疹)foroneortwoweeks.Mostpeoplethinki

5、t'stheflu.Somepeoplehavenosymptoms.13医学资料Theviruswillmultiplyinyourbodyforafewweeksorevenmonthsbeforeyourimmunesystemresponds.Duringthistime,youwon'ttestpositiveforHIV,butyoucaninfectotherpeople.14医学资料Whenyourimmunesystemresponds,itstartstomakeantibodies.Whenthishappens,youwilltestpositiveforHIV.1

6、5医学资料IsthereacureforAIDS?16医学资料Now,thereisnocureforAIDS.TherearedrugsthatcanslowdowntheHIVvirus,andslowdownthedamagetoyourimmunesystem.Thereisnowayto"clear"theHIVoutofyourbody.17医学资料HowtopreventAIDS?18医学资料a)Becarefulaboutyoursexualcontact.b)HIV-infectedmothersshouldavoidbreast-feedingtheirinfant.1

7、9医学资料c)HealthcareworkerscanreduceexposuretoHIVbyemployingprecautions(预防措施)toreducetheriskofexposuretocontaminated(受感染的)blood.20医学资料d)Themostimportantwaytochangeriskybehavioriseducationofhealth.21医学资料WorldAIDSDayW