Contagious pneumonia of cattle. Legally-designated infectious disease of livestock. It is caused by Mycoplasma mycoides, a type of mycoplasma bacterium. Symptoms can be acute or chronic; the former causes fever, loss of appetite, coughing, runny nose, pneumonia, and diarrhea, and death in 7 to 30 days. It has invaded Japan three times in the past, but is currently completely absent. Strict quarantine at open port quarantine stations is mandatory when importing cattle. It is currently endemic in parts of Africa, the Asian continent, and Australia, and although a bovine pleuropneumonia vaccine is used as a preventative measure, early detection and culling is considered the most appropriate treatment. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
牛の伝染性肺炎。家畜法定伝染病。マイコプラズマ属菌の一種牛肺疫菌 Mycoplasma mycoidesによって起る。症状は急性と慢性とがあり,前者は発熱,食欲不振を経て,発咳,鼻汁とともに肺炎,下痢を起して7~30日で死ぬ。日本には過去3回侵入したが,現在はまったく存在しない。牛を輸入する際には開港検疫所の厳重な検疫が義務づけられている。現在,アフリカ,アジア大陸およびオーストラリアの一部に常在しており,予防法としては牛肺疫ワクチンが使用されているが,早期発見のうえ殺すことが最も適切な処置とされている。
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