獾被说成是牛结核病的元凶，而受感染的病牛的大规模运输却被忽略不提。

Badgers are blamed for bovine TB, while the mass transit of infectious cattle is overlooked.

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科学家们说杂交的人类和牛的胚胎能有利于促进寻找方法来预防帕金森式病和老年痴呆症，对于脊髓损伤、糖尿病和关节炎也是一样。

The scientists said the hybrid human-bovine embryos could prove useful in pursuing treatments to prevent Parkinson's disease and Alzheimer's, as well as spinal cord injuries, diabetes and arthritis.

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So, he intentionally inoculated his wife and two children with fluid that he got from one of his sick cows.

所以他给自己的妻子和两个孩子接种了,取自病牛的体液

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And he started with a similar but different observation, and that was that cows get a disease that's very similar to smallpox.

他首先观察到一种类似但不同的情况,就是牛得了一种很像天花的病

耶鲁公开课 - 生物医学工程探索课程节选