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冠状病毒Coronavirusl论文-2005 Canine Coronavirus-Associated Puppy Mortality without Evidence of Concurrent Canine Parvovirus Infection.pdf

冠状病毒Coronavirusl论文-2005 Canine Coronavirus-Associated Puppy Mortality without Evidence of Concurrent Canine Parvovirus Infection.pdf

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时间：2020-03-16

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1、610BriefCommunicationsJVetDiagnInvest17:610±614(2005)Caninecoronavirus-associatedpuppymortalitywithoutevidenceofconcurrentcanineparvovirusinfectionJ.F.Evermann,J.R.Abbott,S.HanAbstract.Thisreportpresents2casesinwhichpuppyfatalitieswereassociatedwithcaninecoronavirus(CCV),butnoevidenceof

2、concurrentcanineparvovirus(CPV-2)diseasewasobserved.Case1involveda7-week-old,maleshort-hairedChihuahua,whichhadbecomelethargic24hoursafterpurchasefromapetstore.Within72hours,thepuppybegantovomit,haddiarrhea,andwasadmittedtotheveterinaryclinic,whereitwasplacedonIV¯uids.TheparvovirusCitet

3、testwasnegative.Thepuppydiedwithin12hoursofadmissionandwassubmittedfordiagnosticworkup.GrosspathologyrevealedanenteritissuggestiveofCPV-2.Histo-pathologyonintestinesshowedscattereddilatedcryptswithnecroticcellulardebrisandneutrophils.Therewasmoderatedepletionandnecrosisoflymphoidfollicl

4、es.Electronmicroscopy(EM)onintestinalcontentswaspositiveforcoronavirusandnegativeforparvovirus.Immunohistochemistry(IHC)ongutsectionswaspositiveforCCVandnegativeforCPV-2.Case2wasan8-week-old,maleShihTzu,whichwasadmittedtotheveterinaryclinicexhibitingsymptomsofseveregastroenteritiswithab

5、dominalpain.Thereferringveterinarianeuthanizedthepuppy,andtheentirebodywassubmittedfordiagnosticevaluation.Necropsyrevealedasevereileo-cecalintussusceptionandsegmentalnecroticenteritisofthesmallintestine.Electronmicroscopyoftheintestinalcontentswaspositiveforcoronavirusandnegativeforpar

6、vovirus.ImmunohistochemistryonsectionsofaffectedgutwerepositiveforCCVandnegativeforCPV-2.ThesecasesemphasizetheimportanceofpursuingadiagnosisofCCVinyoungpuppieswhenCPV-2diseasehasbeenruledoutbyIHC.Keywords:Caninecoronavirus;canineenteritis;canineparvovirus;immunohistochemistry.CanineCor

7、onavirus(CCV)wasinitiallyreportedasthenouncedindogsthathadbothCPV-2andCCVinfectionscausalagentofacuteenteritisindogshousedinamilitarycomparedwithCPV-2alone.1canineunitin1974.8Themorbiditywashigh,butthemor-Overthepast26years,theetiologyofcanineenteritishastalityratewaslow.8Overt

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