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1、veterinarymicrobiologyELSEVIERVeterinaryMicrobiology42(1994)255-259ShortCommunicationStudiesonthesurvivalofcaninecoronavirusunderdifferentenvironmentalconditionsB.J.Tennanta,,R.M.Gaskellb,C.J.GaskellaaDepartmentofVeterinaryClinicalScience,FacultyofVeterinaryScience
2、,TheUniversityofLiverpool,POBox147,LiverpoolL693BX,UKbDepartmentofVeterinaryPathology,FacultyofVeterinaryScience,TheUniversityofLiverpool,POBox147,LiverpoolL693BX,UKReceived31August1993;accepted23March1994AbstractCaninecoronavirus(CCV)isacommonfaecalagentwhichisdif
3、ficulttoisolate.ThisstudyshowsCCVtosurvivewellattemperaturesbelow-20°Cbutnotattemperaturesabove4°(:.ThepresenceoffaecalmaterialmarkedlyreducedCCVsurvivaltimesattemperaturesrangingfrom20°Cto-70°C.Thus,itissuggestedthatdiagnosticfaecalmaterialshouldbediluted1:10(w/v)
4、withgrowthmediumandexaminedattheearliestopportunity.Keywords:Caninecoronavirus;Diagnosis,Caninecoronavirus;Faeces1.IntroductionCaninecoronavirus(CCV)isacommonentericpathogen(Binn,etal.,1974;CarmichaelandBinn1981;Tennantetal.,1991a).ThediagnosisofCCVinfectionrelieso
5、neitherdemonstrationofthevirusbyelectronmicroscopyorbyvirusisolation.ForthelattertechniquetobesuccessfulrequiresgoodsurvivalofCCVinfaeces.Althoughcoronavirusesingeneralshowmoderatestabilityattemperaturesbelow4°C(McIntosh,1974;PensaertandCallebaut,1978;Siddelletal.,
6、1983),felineinfectiousperitonitisvirus(FIPV),acloselyrelatedvirustoCCV,isreportedtobemorelabile(Stoddart,1985).ThesurvivalofCCVatvarioustemperaturesandtheeffectofroutinelaboratoryhandlingandstorageontheinfectivityofCCVhasnotpreviouslybeendescribed.Thus,theaimofthis
7、paperistoinvestigatethesurvivalofCCVundervariousconditionsandtodetermineoptimalstorageconditionsforfieldandexperimentalsamples.*Correspondingauthor.TheSmallAnimalHospital,DepartmentofVeterinaryClinicalScience,UniversityotLiverpool,P.O.Box147,BrownlowHill,Liverpool,
8、L693BX.UK0378-1135/94/$07.00©1994ElsevierScienceB.V.AllrightsreservedSSDI0378-1135(94)00057-4256B.J.TennantetaL/VeterinaryMicrobiology42(1994)255
