疯牛病

• 作 者: 许建华
• 出 处: 幼儿教育
• 发表日期: 2001年12期
• 关键词: 蛋白粒 体内复制 病原性 直接传染 兽医人员 牛脑 化机 电子显微镜技术 痒病 蛋白酵素

1986年,英国兽医人员解剖一头病死的“疯牛”时,发现牛的脑部呈海绵状病变。这种牛脑部呈海绵状病变俗称“疯牛病”,是一种人畜共同传染病,无药可治。此病不但可直接传染,而且可以跨物种传染。它由一种极小的病原性蛋白粒感染致病,这种病原性蛋白粒没有核酸基质,却能在动物体内复制,其生化机能远远超过人类认识范围。目前,连电子显微镜技术都很难鉴定出来。这种病原蛋白粒

In 1986, British veterinarians dissected a dead “mad cow” and found that the cow’s brain was spongy. This bovine brain was spongiform lesions commonly known as “mad cow disease” is a common animal and human diseases, no cure. The disease can not only direct infection, but also cross-species infection. It is caused by an extremely pathogenic protein particle that infects the animal’s body without the nucleic acid matrix, and its biochemical function far exceeds human awareness. At present, even electron microscopy is difficult to identify. This pathogen protein tablets