They were known to get a mild disease called cowpox.

人们发现，她们会得一种叫做牛痘的轻微疾。

But the vaccinia virus is only distantly related to the variola virus that causes smallpox.

但是牛痘毒与引起天花的天花毒关系疏远。

Monkeypox is an Ortohopoxvirus that's related to smallpox and vaccinia virus.

猴痘是一种口蹄疫毒，与天花和牛痘毒有关。

She told Jenner that one of her cows, named Blossom, had recently suffered from cowpox.

她告诉詹纳，一头名叫布洛瑟姆的奶牛最近患了牛痘。

Vaccinia virus is actually the virus that is used in the vaccines for smallpox and monkeypox.

牛痘毒实际上是用于天花和猴痘疫苗的毒。

The nine year old, predictably, got cowpox.

不出所料，这个九岁的孩子得了牛痘。

Cowpox would often cause a few sores, but it is not serious.

牛痘经常会引起一些小脓疮，但并不严重。

Cowpox is a disease that affects cows but can spread to humans through a scratch or cut.

牛痘是一种影响奶牛的疾，但过抓伤或割伤传染给人类。

He conducted an experiment by injecting a child with a small amount of pus taken from a cowpox pustule.

他进行了一项实验，给一个孩子注射了少量牛痘脓疱中的脓液。

Jenner suspected that her blister might give him the opportunity to test whether cowpox was humanity's long-awaited cure.

詹纳猜想她身上的水泡能会给他一个测试牛痘是否是人类期待已久的治疗方法的机会。

Two had been deliberately infected with cowpox.

其中两人被故意感染了牛痘。

And the scientific term for cowpox is at the heart of our story about the English word, " vaccine" .

牛痘的术语是关于英语单词" vaccine（疫苗）" 的故事的核心。

This virus is a much more hazardous cousin of chickenpox and cowpox.

这种毒是水痘和牛痘的近亲，危险性更大。

It worked by infecting people with pus from pox lesions caused by similar but far less pernicious conditions, like cowpox.

其工作原理是让人们感染痘疹伤口流出的脓来产生免疫，这些痘疹由类似但危害性小得多的疾（如牛痘）引起。

Cowpox had some similarities with smallpox, but also some important differences.

牛痘与天花有一些相似之处，但也有一些重要的区别。

For example, they're looking into whether less virulent relatives of coronavirus could protect against COVID-19 the way vaccinia protects against smallpox.

例如，他们在研究毒性较低的冠状毒亲属能否像牛痘预防天花那样预防新冠肺炎。

Catching cowpox was somehow helping these farm workers' bodies fight off the much deadlier smallpox.

感染牛痘在某种程度上帮助这些农场工人的身体抵抗更致命的天花。

So doctors tried giving small doses of cowpox to people who weren't sick.

因此医生尝试给没有生的人注射小剂量的牛痘。

It worked by infecting people with pus from pox lesions caused by similar but far less pernicious conditions, like cowpox.

它的工作原理是用类似但危害性小得多的症（如牛痘）引起的痘灶的脓液感染人。

They wanted to find out if having cowpox would stop people from ever getting smallpox.

他们想知道患有牛痘是否阻止人们感染天花。