cowpox是什么意思

n.[医]牛痘

1. The farmer vaccinated his herd against smallpox by infecting them with cowpox.
这位农民通过让他的牛感染牛痘来为牛群接种疫苗以防止天花。
2. Cowpox is not harmful to cows, but it can be transmitted to humans who come into contact with infected animals.
牛痘对牛没有危害，但它可以通过接触感染的动物传染给人类。

A viral disease of cattle causing pustular eruptions on the udders and in the mouth and eyes. It is caused by a virus similar to but milder than that responsible for smallpox in humans, used in the past to vaccinate against smallpox.