Chronic Wasting Disease (CWD) | Prion Diseases | CDC

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Chronic wasting disease (CWD) is a prion disease that affects deer, elk, reindeer, sika deer and moose. It has been found in some areas of North America, ... Skipdirectlytositecontent Skipdirectlytopageoptions SkipdirectlytoA-Zlink ChronicWastingDisease(CWD) SectionNavigation CDCHome Facebook Twitter LinkedIn Syndicate ChronicWastingDisease(CWD) Minus RelatedPages Chronicwastingdisease(CWD)isapriondiseasethataffectsdeer,elk,reindeer,sikadeerandmoose.IthasbeenfoundinsomeareasofNorthAmerica,includingCanadaandtheUnitedStates,NorwayandSouthKorea.Itmaytakeoverayearbeforeaninfectedanimaldevelopssymptoms,whichcanincludedrasticweightloss(wasting),stumbling,listlessnessandotherneurologicsymptoms.CWDcanaffectanimalsofallagesandsomeinfectedanimalsmaydiewithouteverdevelopingthedisease.CWDisfataltoanimalsandtherearenotreatmentsorvaccines. Todate,therehavebeennoreportedcasesofCWDinfectioninpeople.However,someanimalstudiessuggestCWDposesarisktocertaintypesofnon-humanprimates,likemonkeys,thateatmeatfromCWD-infectedanimals orcomeincontactwithbrainorbodyfluidsfrominfecteddeerorelk.Thesestudiesraiseconcernsthattheremayalsobearisktopeople.Since1997,theWorldHealthOrganizationhasrecommendedthatitisimportanttokeeptheagentsofallknownpriondiseasesfromenteringthehumanfoodchain. SomeoftheknowncarriersofCWDaremuledeer,white-taileddeer,elk,andmoose. OccurrenceTransmissionPreventionResourcesE-MailUsForQuestionsorCommentsonPrionsEmailCDC-INFO. CDCRelatedLinks PrionDiseases Creutzfeldt-JakobDisease,Classic(CJD) VariantCreutzfeldt-JakobDisease(vCJD) BovineSpongiformEncephalopathy(BSE),orMadCowDisease Pagelastreviewed:September10,2021 Contentsource: CentersforDiseaseControlandPrevention ,NationalCenterforEmergingandZoonoticInfectiousDiseases(NCEZID) ,DivisionofHigh-ConsequencePathogensandPathology(DHCPP) home CWD Occurrence CWDinAnimals Prevention Transmission Resources Facebook Twitter LinkedIn SAS stats ExitNotification/DisclaimerPolicy Close LinkswiththisiconindicatethatyouareleavingtheCDCwebsite. TheCentersforDiseaseControlandPrevention(CDC)cannotattesttotheaccuracyofanon-federalwebsite. Linkingtoanon-federalwebsitedoesnotconstituteanendorsementbyCDCoranyofitsemployeesofthesponsorsortheinformationandproductspresentedonthewebsite. Youwillbesubjecttothedestinationwebsite'sprivacypolicywhenyoufollowthelink. CDCisnotresponsibleforSection508compliance(accessibility)onotherfederalorprivatewebsite. FormoreinformationonCDC'swebnotificationpolicies,seeWebsiteDisclaimers. Cancel Continue



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