"They're fine all day at school, they come home, they get a drink of water, and that's when they got sick.
VOA: standard.2010.01.02
It's a long-term plan, which can go wrong if you get sick and die in your early 20s.
这是长期的计划,若你在二十几岁生病死去它就会出错。
A lot of didn't get sick from it now, and we got sick from it before.
许多人不会再因为微生物得病了,而人们以前则会因此生病
Sometimes,when people get sick, they go to a small pharmacy, boutique or street corner, where vendors sell medicines that aren't effective.
VOA: standard.2009.04.25
I could believe in demons and say, "Why does a person get sick and die?
我可以相信存在魔鬼,然后说,人为什么会生病和死亡
Probably it wouldn't, you would probably get a little bit sick anyway, but recover.
或许免疫应答还做不到这一点,你可能仍会小病一场,但很快就康复
Now, the problem, or one of the challenges with clinical trials of vaccines is that you have to enroll a lot of patients into clinical trials because only a few are going to get sick in any case, only 20 out of 100,000.
现在的问题是,这也是疫苗临床试验的挑战之一,临床试验必须包括足够多的病人,毕竟只有一小部分人会被传染,十万人里面只有二十人被传染
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