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以前人们对此深信不疑,即所有的感染都是病原体如病毒、细菌或寄生虫等所致,这病原体有自身的DNA或RNA作为生物学功能和致病的遗传学基础。但是大约15年以前,旧金山加利福尼亚大学的Prusiner根据自己的观察,即人类和动物某些神经变
In the past, people were convinced that all infections are caused by pathogens such as viruses, bacteria or parasites, which have their own DNA or RNA as the genetic basis of biological function and pathogenicity. But about 15 years ago, Prusiner of the University of California, San Francisco, based on his observations that certain neurological changes in humans and animals