Filterable virus

…In 1892, D. Ivanovskii demonstrated that the filtrate from a bacterial filter that does not allow bacteria to pass through it was clearly pathogenic in tobacco mosaic disease, and in 1898-99, F. Loeffler and P. Frosch demonstrated that the filtrate from a bacterial filter that does not allow bacteria to pass through it was clearly pathogenic in bovine foot-and-mouth disease. Subsequently, it was confirmed that the pathogens of infectious diseases such as yellow fever, rabies, and cowpox could pass through bacterial filters in the same way, and the concept of a filterable virus was established at the beginning of the 20th century. The word virus originally came from the Latin meaning of "toxin" and was generally used to refer to the causative agents of infectious diseases, but since the 1930s it has come to mean a filterable pathogen. …

*Some of the terminology that refers to "filterable virus" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…1892年にイワノフスキーD.I.Ivanovskiiがタバコモザイク病で，98‐99年にレフラーF.LoefflerとフロッシュP.Froschがウシの口蹄疫で，それぞれ，細菌を通さない細菌ろ過器を通過させたろ液それ自体が，明確に病原性をもつことを示した。引き続いて，黄熱，狂犬病，牛痘などの伝染病の病原が，同じように細菌ろ過器を通過することが確認され，20世紀の初頭には〈ろ過性病原体filterable virus〉という概念が確立された。ウイルスという言葉はもともとはラテン語の〈毒素〉という意味で，一般に伝染病の病原因子を総称していたが，1930年代以降は，ろ過性病原体を意味するようになった。…

※「filterable virus」について言及している用語解説の一部を掲載しています。

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