犬瘟热病毒强毒株的分离与鉴定  被引量:12

ISOLATION AND IDENTIFICATION OF VIRULENT CANINE DISTEMPER VIRUS

在线阅读下载全文

作  者:田克恭[1] 遇秀玲[1] 吴娜[1] 隋丽华[1] 任晓明 李俊梅[1] 刘永梅[1] 渠川玫[1] 

机构地区:[1]军事医学科学院实验动物中心

出  处:《畜牧兽医学报》1998年第2期151-154,共4页ACTA VETERINARIA ET ZOOTECHNICA SINICA

摘  要:从病死犬肺、肝和淋巴结分离到2株CDV,CDV93039和CDV93041。消除小牛血清中的干扰因素和33℃培养是分离成功的主要因素。两株病毒均在Vero细胞生长良好,传2~4代毒力稳定,CPE产生明显,TCID50为10-6.50~10-6.77,明显高于国内外野毒株和弱毒株的毒力效价。人工感染犬死亡率较高,表明该分离株致病力较强,作者推测我国犬群可能存在CDV强毒变异株。オwo strains of canine distemper virus (CDV) were directly isolated from the lung,liver and lymph node of infected dogs with vero cell cultures.Elimination of certain interfering factors that calf serum contains,and incubation at 33℃ were the main factors for a successful isolation.The two strains of CDV could grow very well in vero cell cultures.The growth properties were cytopathogenic,inducing cellular necrosis,syncytium formation,and inclusion bodies within infected cultures.They did not give hemagglutination with human,mouse,rat,guinea pig,rabbit,dog,monkey,chicken,pig,sheep and Chinese hamster red blood cells.Under electron microscope,the capsid was enclosed by envelope which carries an outer fringe of fine spikes or projections.Two strains readily proliferated in vero cell cultures ,the mean tissue culture infective doses (TCID50)were 10-6.50~106.77from 2 to 4 generations.That was higher than that of virulent field strains and vaccine strains.The puppies individually infected with two strains by intraperitoneal inoculation and intranasal inoculation showed distinctive clinical signs,and the mortality was high.The authors suspect that virulent variant strains of CDV may exist in China.

关 键 词:犬瘟热病毒 分离 鉴定 

分 类 号:S852.655[农业科学—基础兽医学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象