事实上从来没有任何人因为食用美国牛肉被确诊感染人类疯牛病。
There has never been a confirmed case of anyone contracting the human variant of mad cow disease from eating American beef.
一群顶尖的医生目前正在受审，原因是间接注射了人类疯牛病病毒污染的生长激素而导致了117个孩子的死亡。
A group of top doctors are currently on trial for indirectly causing the deaths of 117 children by injecting them with growth hormones tainted with the human form of mad cow disease.
医生们说，人类有可能通过食用病牛肉而感染上导致脑部病变的致命疯牛病，但是可能性并不大。
Doctors say it is possible, but unlikely, to contract a human form of the disease by eating meat from infected animals.
医学专家说，尽管理论上讲人类可以通过食用染病牛肉传染上变异的疯牛病，但实际上这种可能性微乎其微。
Medical experts say it is hypothetically possible, though extremely unlikely, for people to contract a human variant of the disease by consuming tainted meat.
有很多例子可以反应科学及其透明度的问题：当疯牛病刚开始爆发时，科学家们合理推断它不会传染给人类；
There are many examples where the issue of science and transparency come up: When mad cow disease first broke out, the first sensible guess from scientists was that it could not spread to humans;
朊病毒是一种畸形的蛋白质，导致一些致命的疾病：如疯牛病，羊痒病，人类库鲁和克雅氏病(CJD, vCJD)。
Prions cause a number of fatal diseases such as mad cow disease in cattle, scrapie in sheep and kuru and Creutzfeldt-Jakob disease (CJD) in humans.
从理论上讲，人类食用感染上疯牛病的牛肉有可能感染类似的脑部致命疾病。
It is theoretically possible for humans to contract a version of the disease by eating tainted meat.
恢复美国牛肉进口的协议对月龄较高的牛肉进口不加限制，很多韩国人认为，这带来了人类感染疯牛病的风险。
That deal failed to restrict imports of beef from older cattle, which many South Koreans believe pose a risk of transmitting a human variant of mad cow disease.
到目前为止，还没有出现人类因为食用美国牛肉感染疯牛病的案例。
There has never been a documented human case of such brain disease linked to consumption of U.S. beef.
由于之前所认为疯牛病在物种之间存在壁垒，所以认为对人类吃养殖鱼类而被传播疯牛病的危险似乎是很低。
The risk of transmission of BSE to humans who eat farmed fish would appear to be low because of perceived barriers between species.
目前疯牛病、禽流感等动物传染病传染给人类的事例，引起了人们对肉食产品安全性的高度关注。
The case, that the mad bull disease and bird flu infected human, caused people's attention to the reliability of meat.
疯牛病是一种严重危害牛类健康的疾病，它的感染因子可以传染给人类。
Bovine Spongiform Encephalopathy(BSE) is harmful to the health of bovine, the BSE subvirus can infect to human being.
疯牛病是一种严重危害牛类健康的疾病，它的感染因子可以传染给人类。
Bovine Spongiform Encephalopathy(BSE) is harmful to the health of bovine, the BSE subvirus can infect to human being.
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