So, this just shows as the vaccine was distributed, given to more people, that prevalence of the disease dropped dramatically.

因此,这表明随着疫苗的推广,以及接种人数的增加,该疾病的患病率显著降低

耶鲁公开课 - 生物医学工程探索课程节选

They fixed that procedure and after that the cases went down even more.

该厂家修正了生产漏洞之后,疾病的发生率下降的更多了

耶鲁公开课 - 生物医学工程探索课程节选

Well, it also illustrates that one of the things you do after you introduce a vaccine, you can't stop there, you have to continually watch what's happening with this disease in your population.

同时,也告诉我们,将疫苗推向公众后,你不能就此放手,你必须得继续观察,接种过疫苗的人中,该疾病的发病情况

耶鲁公开课 - 生物医学工程探索课程节选

Another approach which is still investigational, in that it's being tried for many diseases but not yet clinically used in any particular one, is maybe you don't need to introduce a whole virus or pieces of a protein at all.

另一种方法目前仍处于试验阶段,该方法即将试用于许多疾病,但还没有对某一特定疾病进行临床试验,那就是无需引入整个病毒,或者根本不用引入蛋白质片段

耶鲁公开课 - 生物医学工程探索课程节选

We did not yet have good methods for screening blood to look for HIV, we didn't have the ELISA technique that I--we talked about in section a few weeks ago and so there was a great concern that there might be other diseases that you'd be passing on from-- unknowingly from this subset of patients that you're isolating the vaccine from.

那时我们还没有一种好的方式,来从血液中筛查出HIV,也还没有ELISA技术,该技术我们在几周前的一个章节中谈到过,因此,那时仍存有,很大的担心,那就是你有可能,在不知情的情况下,被那些病人,感染上其它疾病,因为疫苗就是从他们身上提取出来的

耶鲁公开课 - 生物医学工程探索课程节选