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就在一个世纪前,科学家们还相信传播疾病的微生物是细菌。但人们很快发现,这并非答案的全部。荷兰植物学家马蒂纳斯·拜耶林克发现,从染病植物中提取的汁液在被过滤所有已知细菌后仍能使健康的烟草植株染病。1898年,拜耶林克宣布他的解释:存在一种他称之为“contagium vivumfluidum”(后来这一名称逐渐演化成“virus”,源自拉
Just a century ago, scientists also believed that the microbes that transmitted the disease were bacteria. But people soon discovered that this is not the answer to all. Dutch botanist Martynas Bajelink found that the juice extracted from the infected plants still infects healthy tobacco plants after all known bacteria have been filtered. In 1898, Beyerinck announced his explanation: There is a kind of what he calls “contagium vivumfluidum” (later the name evolved into “virus”