Despite the long journey undertaken by mankind to confront the diseases caused by viruses,people were unaware of the existence of viruses until the closing years of the 19th century,when the Russian biologist Dmitri I...Despite the long journey undertaken by mankind to confront the diseases caused by viruses,people were unaware of the existence of viruses until the closing years of the 19th century,when the Russian biologist Dmitri Ivanovsky demonstrated that tobacco plants could be infected by a toxin smaller than bacteria,followed by which the Dutch microbiologist Martinus Beijerinck termed the toxin as a contagium vivum fluidum （soluble living germ） and re-introduced the word ＂virus＂ （derived from the Latin word ＂virus＂ meaning poison; the modern meaning is an ＂agent that causes infectious disease＂ that was first recorded in 1728）.展开更多
文摘Despite the long journey undertaken by mankind to confront the diseases caused by viruses,people were unaware of the existence of viruses until the closing years of the 19th century,when the Russian biologist Dmitri Ivanovsky demonstrated that tobacco plants could be infected by a toxin smaller than bacteria,followed by which the Dutch microbiologist Martinus Beijerinck termed the toxin as a contagium vivum fluidum （soluble living germ） and re-introduced the word ＂virus＂ （derived from the Latin word ＂virus＂ meaning poison; the modern meaning is an ＂agent that causes infectious disease＂ that was first recorded in 1728）.
