Ivanovskii, DI (English spelling) IvanovskiiDI

…However, there were some infectious diseases in which these pathogenic bacteria could not be found. In 1892, D. Ivanovskii demonstrated that the filtrate passed through a bacterial filter that does not allow bacteria to pass through was clearly pathogenic in the case of tobacco mosaic disease, and in 1898-99, F. Loeffler and P. Frosch demonstrated that the filtrate passed through a bacterial filter that does not allow bacteria to pass through was clearly pathogenic in the case of 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 at the beginning of the 20th century the concept of a filterable virus was established. …

*Some of the terminology explanations that mention "Ivanovskii, DI" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…しかし，伝染病のうちには，これらの病原性細菌が見いだされないものがあった。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。…

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