波特梅莫里——男20岁部族不详，在普利茅斯海军医院死于天花接种之后。

Unknown tribe. Died in the Naval Hospital in Plymouth after a smallpox vaccination.

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一位英国医生爱德华•琴纳(Edward Jenner)，发现通过接种感染牛痘脓疱可以预防天花。

An English physician, Edward Jenner, discovered that by inoculating a person with pustules from the pox infection of a cow, smallpox could be prevented.

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本次会议上报告的最新资料来自2003年1月以后接种过天花疫苗的38759名美国人，包括65％的医疗卫生工作者和来自45％的医院的至少1名医疗卫生工作者。

The current update was based on 38,759 persons vaccinated in the United States since January 2003, covering 65% of health care workers and at least one health care worker in 45% of hospitals.

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And so even people that got vaccinated, most of us either have questionable or no protection against the virus at this point.

所以就算那些接种过天花疫苗的人,到那时候也不一定,或者压根无法抵御病毒

耶鲁公开课 - 生物医学工程探索课程节选

Well, there's a whole population of people who are younger than me that never got smallpox vaccines, right?

所有比我小的人,都没有接种过天花疫苗,对吧

耶鲁公开课 - 生物医学工程探索课程节选

This process, I said, this ancient process of taking scabs from patients and introducing them to people you wanted to protect, was called variolation.

这个过程,我想,这个从病人身上取痂,接种到你想保护的人身上的古老过程,叫做天花接种

耶鲁公开课 - 生物医学工程探索课程节选