摘要
应用鸡胚成纤维细胞(CEF)从新疆地区分离到3株细胞适应株,对其进行了理化特性和血清学特性的鉴定。结果表明3个毒株能抵抗氯仿,耐热(56℃1小时)、(70℃1小时或80℃1小时)、耐酸(pH2)、对碱(pH12)敏感。但与国内已报道的毒株相比,对热(70℃)和碱(pH12,37℃1小时)的抵抗力则更强些,在这些条件下均不能完全灭活。血清中和试验表明均为IBDV血清I型。交叉中和试验表明,分离的3株毒株有1株和另外2株是不同的血清亚型,确证了新疆也存在IBDV血清亚型。3株病毒在CEF上连续传代已基本致弱,其细胞培养液接种鸡能产生相应的免疫抗体。
localstrainsfromXinjangofInfectiousbursaldiseaseViruseswereisolatedbythecultureofCEFcellTheirphysicochemicalpropertiesandserologicalcharacterswereidentifiedbythetechniqueofmicrocellcultureTheresultshowsthatall3strainshavethecharactersofchloroformresisting,heatresisting(561h),acidresisting(pH2),alkalinesensiting(pH12)Butitwasnotcompletelyinactivatedatthecondionsof70(1h)or80(1h)andpH12(371h)ComparingtootherstrainswhichreportedinChina,presentisolatedstrainshadmoreresistanttoheatandalkaline VirusneutralizationtestshowedItwasallbelongedtoserologicaltypeIofIBDVViruscrossneutralizationtestshowedthereweredifferentisotypebetweentheisolatedstrains3isolatedstrainswerealmostattenuatedbythemethodofcontinualivelypassagingonCEFcellbecauseitscellculturecouldcausechickentoproducetherelativeimmuneantibodyandprotectiffromIBDV
出处
《中国预防兽医学报》
CAS
CSCD
1999年第3期166-168,共3页
Chinese Journal of Preventive Veterinary Medicine
基金
国家自然科学基金
新疆科委资助