In 1986, the United Kingdom reported the world's first case of mad-cow disease, or bovine spongiform encephalopathy (BSE), and was ultimately compelled to destroy 160,000 head of cattle.
1986 年英國發現全球第一例狂牛症，一種牛隻間的「傳染性海綿樣腦病變」，造成 16 萬頭牛死亡。