…Humans are also intermediate hosts, and often become infected when they come into contact with dogs and unknowingly ingest the eggs attached to the dog's fur. The most common sites of infection for hydatids are the liver and lungs, but they can also infest the kidneys, spleen, and brain, and depending on the site, can cause fatal echinococcosis (hydatid disease). On the other hand, in the case of hydatids, the definitive hosts are dogs and foxes, and the intermediate hosts are mainly field mice, but the hydatids are multilocular and, unlike those of hydatids, are not surrounded by connective tissue, so they are prone to rupture and can metastasize via the bloodstream or lymph nodes, causing multiple infections. … *Some of the terminology that mentions "echinococcosis" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ヒトもまた中間宿主で,イヌとの接触の際,イヌの体毛に付着した虫卵を知らずに摂取して感染することが多い。包虫の寄生部位としては,肝臓,肺が最も多く,そのほか腎臓,脾臓,脳などにも寄生し,その部位によっては致命的な包虫症echinococcosis(hydatid disease)の原因となる。一方,タホウジョウチュウの場合,終宿主はイヌ,キツネ,中間宿主は主として野ネズミの類であるが,その包虫は多房性であり,またタンホウジョウチュウの場合と異なり周囲が結合組織で覆われないため破れやすく,血行またはリンパを介して転移し多発することがある。… ※「echinococcosis」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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