You don't have it, you don't have any immunity to smallpox, you don't have any reason to immunity to smallpox.
你们对天花没有任何免疫力,你没有任何理由能对天花免疫
You've all been immunized for Hepatitis B, would you be happy to hear that that's where your Hepatitis B vaccine came from?
你们都对乙型肝炎具有免疫力了,如果你知道你的乙型肝炎疫苗,是从何而来的话,你还会高兴的起来吗
And he was right; they got immunity and were protected from smallpox when it affected their community.
他是对的,当天花在周围流行时,他们具备了对天花的免疫力
But talk about sort of engineering the immune system, how to produce immunity in individuals.
讨论免疫系统的构成,以及个体是如何产生免疫力的
Now we don't need the cow anymore because you could pass it from one person to another, and pass the immunity from one person to another.
由于它可以在人与人之间传播,就不再需要奶牛了,就可以把免疫力在人与人之间传播
So, what that really means, you know, from last week's lecture, is that the vaccine stimulates these particular cells in your immune system to give you immunity.
所以,这就意味着,通过上周的课程,你们知道,疫苗通过刺激免疫系统中的,特定细胞来使人获得免疫力
应用推荐