最主要的担忧是，艾滋病毒携带者可能会向血液中心献血。

A leading concern is that someone with AIDS virus might give blood to a blood centre.

youdao

疫苗与病毒的“外观”完全相同，主要由被削弱或杀死的病毒制成。

Vaccines are something that "looks" exactly the same as the viruses, mainly made from the viruses that are weakened or killed.

youdao

西尼罗河病毒主要通过受感染蚊子的叮咬传播给人类。

West Nile virus is mainly transmitted to people through the bites of infected mosquitoes.

youdao

They can't always neutralize viruses because the viruses are predominantly inside cells.

抗体不是总能中和病毒,因为病毒主要在细胞中

耶鲁公开课 - 生物医学工程探索课程节选

And then they found that they could freeze-dry this preparation of virus, and freeze-drying to lower the temperature, freeze it, then extract out all the water, so you're left with a powder, basically a powdered form of the virus, that could be shipped all over the world, and then reconstituted by adding water to it.

研究者们发现可以冷冻干燥这些病毒制剂,冷冻干燥就是就是降低温度,冷冻病毒,然后提取出所有水份,然后就剩下一些粉末,这主要是粉末状的病毒,这样就能将它运往全世界,并可以通过加水来恢复病毒的活性

耶鲁公开课 - 生物医学工程探索课程节选

We talked about host cells that are perhaps infected with a virus, displaying pieces of that virus, antigenic pieces of that virus in the context of a surface receptor called MHC-1, presenting that.

我们说到过,可能受到病毒感染的宿主细胞,表现出病毒的一部分特征,病毒的抗原部分,其表面受体称为主要组织相容性抗原-1,MHC-1负责呈递抗原

耶鲁公开课 - 生物医学工程探索课程节选