来自《传染病 第0集》
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Things that keep people calm.那些能镇定民众的消息 -
What we need to determine is this:我们需要决定的是 -
For every person who gets sick...每一个患者 -
...how many other people are they likely to infect?可能会感染多少人 -
So for seasonal flu, that's usually about one.季节性流感 通常只有一个感染者 -
Smallpox, on the other hand, it's over three.天花 超过三个 -
Now, before we had a vaccine...在我们研发出疫苗之前 -
...polio spread at a rate between four and six.小儿麻痹患者通常能感染四到六个人 -
Now, we call that number...现在 我们将这个数字称作 -
...the R-nought.基本传染数 -
R stands for the reproductive rate of the virus.传染数是指病毒的繁殖率 -
Any ideas what that might be for this?跟这事有什么关系吗