›› 1997, Vol. 17 ›› Issue (1): 3-5.

• 论文 • 上一篇    下一篇

Wistar大鼠感染痘病毒观察

  

  1. 1.卫生部上海生物制品研究所医学实验动物中心,上海 200051;2.上海第二医科大学附属仁济医院
  • 收稿日期:1996-02-24 出版日期:1997-01-25 发布日期:2013-03-19

Observation on the Natural Poxvirus Infecton in a Colony of Wistar Rat

  1. Medical Laboratory Animals Centre, Shanghai Institute of Biological Products, Ministry of Public Health, Shanghai 200051
  • Received:1996-02-24 Online:1997-01-25 Published:2013-03-19

摘要: 30只无合格证的Wistar大鼠发生了酷似小鼠脱脚病的疾病,发病率高达33.3%(10/30)。取病鼠的皮肤经组织学检查,发现其病理变化呈痘病毒感染的特征性改变。病鼠的肝、脾匀浆接种于SPF鸡胚绒毛尿囊膜后,出现痘斑并已连续传至第4代,经电镜检查发现有成熟的病毒粒子和许多幼稚型病毒。病毒形态与痘病毒一致,有囊膜,直径在170~212.5nm之间。异常肝、脾组织和经传代接种的鸡胚绒毛尿囊膜的匀浆上清液,对鸡红细胞均呈阳性凝集反应;但接种于豚鼠角膜呈阴性反应。用小鼠痘病毒ELISA试剂盒检测病鼠血清呈阴性反应。

关键词: 大鼠, 痘病毒, 自发感染

Abstract: An outbreak of poxvirus infection was occurred in a Wistar rat colony,with a morbidity of 33.3% (10/30). The clinical signs and the pathohistological findings of the tail skin, liver and spleen lesions were identical with those of mouse pox. The DNA of the virus was found in the epithelial cytoplasm by using Feulgen stain. Suspension of the homogenized liver and spleen tissues were inoculated onto chorioallantoic membranes of 12 - day chick embryos. Pocks were appeared on the membranes at the fourth passage. Electron microscopic examination revealed the presence of poxvirus in both the chorioallantoic membranes and the suspension of the homogenized tissues.

Key words: "Rat, Poxvirus infection "