大二下學(xué)習(xí)-寄生蟲課件肺吸蟲

小組成熊峰岳穩(wěn)畢亮Paragonimiasisisafood-borneparasiticinfectioncausedbythelungflukewhichcancauseasub-acutetochronicinflammatorydiseaseofthelung.ItisoneofthemorerecognizedlungflukeswiththeanraphicalredbyC9-1927)anrSize,shape,andcolorresembleacoffeebeanHumansgetinfectedwiththedisease,byeatingrawcrabsorfishthatarecarryingtheEvenproperlycookedsushicancauseinfection,ifthecookorwaiteriscarelesswhenpreparingthefood.In

Humanlungflukeinfects22millionpeopleinAfrica,AsiaandSouthandCentralAmerica.SoutheastAsiainparticularbuverybu Coffeebean-shaped,reddishbrownandthickbodied,spinyintegument.Theoralandventralsuckersareaboutequalinsize,withthelatterplacedslightlypreequatorially Containsofopening,pharynxesophagusandtwocurvingintestinal Twoirregularlylobedtestesissituatedsidebysideabouttwo-thirdsdownthelengthofthebodyTheovary,anteriortothe,isalsolobated.UterusisatightlyGoldenbrownincolor,ovalshapedbutusuallyasymmetrical,80-118×48-60um,thickandunevenwithadistinctoperculum,onesinglecalledovumsurroundedbyseveralyolkcellswiththedaccghterrediaDaccghter LifeLocationofadult:chieflyinlungraworpoorlycookedfreshwatercrabsorcrayfiahcontainingthe:ost:humanandcarnivorousmammals.HumanareaccidentalhostofP.westermani.Thefirstintermediatehost:snailof usBrotiaThesecondintermediatehost:freshwatercrabsandcrayfishReservoirhost:severalspeciesofcarnivorousmammals,includingfelids(tigers,lions,leopards),canids(dogs,foxes,wolves)Paratenichost:boars,pigs,rabbits, ,andsoonMigrationinhumanbodyeatrawCharybdismetacercariacomeintosmalllarvamovetolarvapassthroughseptumtransversumandturnintolunglarvadevelopintoadultinadultcanlive5-6yearsin 內(nèi)移行、寄居造成的機(jī)械性損傷，其代謝物引起的免疫 急性位，導(dǎo)致各部位的，炎癥。臨床表現(xiàn)為輕者食欲診為診慢性膿腫期：蟲體移行引起組織破壞和繼發(fā)慢性其他類型：蟲體進(jìn)入腎、、眼眶、陰囊引相 的損壞Historyofeatingrowcrayfishorfresh-watercrabs.detectingeggsinsputumorbiopsyimmunologicalId(intradermal

LungbiopsyofpulmonaryPreventionandAbstainingfromeatingraworinadequatecookedcraborcrayfish. AbstainingfromcontaminatingfingerswiththemetacercariawhilecoPraziquanBithionol:15~25mg/kg,Tid,10~15dDistribution:worldwidein.AsiaendemicareasincludingChina,Japan,Korea,Laos,thePhilippines,andThailand;inAfrica,theCameroon,theConalley,Gambia,andNigeriainSouthandCentralAmerica,Colombia,CostaRica,Mexico,andPeru.Inmostareas,thediseaseisprin