…In 1879, Swiss physician D. Ritter first described pneumonia in humans who had come into contact with tropical birds. Later, in 1895, French physician A. Morange confirmed that parrots were the vectors of the disease, and named it psittacosis, from the Greek word psittakos (parrot). The causative agent was previously considered a virus, but it has recently been reclassified as a bacterium, called Chlamydia psittaci , due to its large size (250-400 μm ), cell wall, binary fission growth, and sensitivity to antibiotics that act on bacterial enzymes. This bacterium is also found in about 90 species of birds other than parrots, including pigeons, ducks, chickens, pheasants, and turkeys, so the more accurate name for the disease is ornithosis. … *Some of the terminology that mentions "Chlamydia psittaci" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…1879年,スイスの医師リッターD.Ritterが熱帯産の鳥に接触した人に起こった肺炎について記載したのが最初で,その後,95年にフランスのモランジュA.Morangeによってオウムがこの病気を媒介することが確認され,ギリシア語のpsittakos(オウム)からpsittacosisと命名された。病原菌は従来ウイルスとされていたが,大きさ250~400mμと大型で細胞壁があり,二分裂法により増殖し,細菌の酵素系に作用する抗生物質に感受性があるなどの特徴から,最近になって細菌として再分類され,現在はクラミディアChlamydia psittaciと呼ばれている。この細菌は,オウム以外の,ハト,カモ,ニワトリ,キジ,シチメンチョウなど約90種の鳥にも存在することから,鳥類病ornithosisがより正確な名称とされている。… ※「Chlamydia psittaci」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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