...A group of intracellular parasitic bacteria belonging to the Rickettsiaceae family, whose size is intermediate between that of normal bacteria and viruses. The first discovery of rickettsia was in 1909, when H. T. Ricketts discovered bacteria-like bodies in the blood of patients with Rocky Mountain spotted fever and reported this. In 1916, Henrique da Rocha-Lima (1879-1956) named it after Ricketts, who died of typhus infection while studying the pathogen (also a rickettsia) of typhus. Rickettsia was long thought to have properties intermediate between those of bacteria and viruses, but it is essentially a type of bacteria, and is classified as such in taxonomy. *Some of the terminology that mentions "da Rocha-Lima, H." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…大きさが通常の細菌類とウイルスとの中間で,リケッチア科Rickettsiaceaeに属する一群の細胞内寄生菌。1909年H.T.リケッツがロッキー山紅斑熱の患者の血中に細菌様小体を発見し,これを報告したのがリケッチア発見の初めで,発疹熱病原体(これもリケッチア)の研究中,同病に感染して死亡したリケッツにちなんで,16年ダ・ロシャ・リーマHenrique da Rocha‐Lima(1879‐1956)によって命名された。 リケッチアは細菌とウイルスの中間の性状をもっていると長く考えられていたが,本質的には細菌の1種であり,分類学上もそのように決められている。… ※「da Rocha-Lima,H.」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。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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