它是一种比病毒小,看来缺少基因,但可引起致命的疾病。斯坦列·普鲁辛纳(Stanley Prusiner)医师遇到的第一个病例,是个女病人,五十开外,平素健康。她的第一个症兆是不能顺当地把汽车钥匙插进点火器。这表明她的动作失调。个把月后,她感到发音困难,麻痹,不能记起自己的名字。实际上她患的是罕见的痉挛性假性硬化症。这种顽疾侵袭神经系 It’s a virus that is smaller than it seems and lacks genes, but it can cause fatal illnesses. The first case encountered by Stanley Prusiner was a female patient, who was not ill after 50. Her first symptom was the inability to properly insert the car key into the lighter. This shows that she’s in disorder. After a few months, she felt dysphasia, paralysis, can not remember his name. In fact she is suffering from a rare spastic pseudosclerosis. This chronic illness attacks the nervous system