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1、VeterinaryMicrobiology,2(19'7)83--8783?ElsevierScientificPublishingCompany,Amsterdam--PrintedinTheNetherlandsShortCommunicationHEMAGGLUTINATIONBYCALFDIARRHEACORONAVIRUS.K.SATO,Y.INABA,H.KUKOGI,E.TAKAHASHI,K.SATODA,T.OMORIandM.MATUMOTO*NationalInstituteofAnimalHealth,Kodaira,T
2、okyo(Japan)*KitasatoInstitute,Minato.ku,Tokyo(Japan)(Received17November1976)ABSTRACTSato,K.,Inaba,Y.,Kurogi,H.,Takahashi,E.,Satoda,K.,Omori,T.andMatumoto,M.t1977.Hemagglutinationbycalfdiarrheacoronavirus.Vet.Microbiol.,2:83--87.TheviruswasgrowninBEK-1cells,astablecelllinefrom
3、bovineembryokidney,andtestedforhemagglutinafion(HA)witherythrocytesofavarietyofspeciesat4°C,roomtemperatureand37°C.HAwasobservedatalltemperatureswithchicken,mouse,rat,andhamste~erythrocytesbutnotwitherythrocytesofhuman(O),cattle,horses,~heep,guineapigs,geese,duck~,pigeonsandl
4、-day-oldchicks.Chickensshoweda~individualvariationinagglutinabilityoftheirerythrocytes,requiringselectionofbirdstoobtainerythrocytesforHA.HAreactionwasinhibitedbyspecificantiserum.SomefactorsinvolvedinHAandHAinhibition(HI)wereinvestigatedandstandardHAandHItestswereworkedout.C
5、alfdiarrheacoronavirushasbeenrecognizedasoneoftheetiologicagentsofneonatalcalfdiarrhea(:Stairetal.,1972;Mebusetal.,1972,1973aandb;Sharpeeetal.,1976).Recentlytheviruswasreportedtoagglutinateerythro-cytesfromrats,miceandhamsters(Sharpeeel;al.,1976).Independentlywealsoobservedth
6、atthevinlsagglutinatedmouse,rat,hamsterandchickenerythrocytes.Thispaperdescribesourobservationsofhemagglutination(HA)withthevirusandHA-inhibitionbyspecificantiserum.Calfdiarrheacoronaviruspassagedinbovineembryokidneycellcultures(Mebusetal.,1973a)ws~suppliedbyDrC.A.Mebus,Unive
7、rsityofNebraska.InourlaboratorytheviruswaspassagedseriallyinculturesofBEK-I~acontin-uouscelllinederivedfrombovineembryonickidney(Inabaetal.,1976),andusedatthe7thorlaterBEK-1passagelevelinthepresentstudy.CulturesofBEK-1cellswerepreparedasdescribedpreviously(Inabaetal.,1976).Th
8、egrowthmediumusedwv~Eagle'sminimumessentialmedium(MEM)contain-ing10%
