Pat oliphant ' s cartoon melds two current concerns prominent in us newspapers . at one level it plays wittily on the theme of bovine spongiform encephalopathy , the dreaded " mad cow disease " recently detected in the carcass of a slaughtered dairy cow from washington state unless , as is now suspected , it actually originated in alberta 一方面，漫画巧妙地提到了最近从华盛顿州宰杀的牛体中检测出来的牛脑海绵体病，也就是可怕的疯牛病除非该病真是如所怀疑的那样起源于加拿大的阿尔伯塔否则就是源于华盛顿州了。
On the control of bovine spongiform encephalopathy ( bse ) ( also known as " mad cow disease " ) , special health attestation is required for countries with bse , taking reference from recommendations by international authorities including the world health organisation ( who ) and the world organisation for animal health ( oie ) . the principle is that the bse agent should be prevented from entering the human food chain 防范牛海绵体脑病（或称疯牛症）方面，我们以防止疯牛症的致病媒介进入人类的食物链为原则，并参考世界?生组织和国际兽疫局等国际权威机构的建议，规定发生疯牛症个案的国家须额外提供特别的?生证明。
The discovery of just one cow affected by mad cow disease in the usa resulted in the importation of us beef being banned in some countries such as japan and korea , and in turn a shortage of beef in many restaurants . another example of how recent scares can disrupt food supplies out of all proportion to expert assessment of risk 但已造成一些国家例如日本和韩国禁止美国牛肉输入，导致许多餐厅里的牛肉缺乏，这是另外一个例子告诉我们尽管有许多食物风险的专家评估，这些最近吓人的报导还是可能使食物供应中断。
