Here's a neat genetic trick: Make a chicken that can get the flu, but can't pass it on to other birds - or, presumably, to the humans who take care of them.
这是一个简单的基因戏法：创造出一种能感染流感的鸡，但是它又不会把流感传染给其他禽类，或者，像设想的那样不会传染给养殖它们的人类。
The Russians stopped importing pork, even though you don't get the flu from eating pork.
俄罗斯已经停止进口猪肉了，即使我们并不会因为吃猪肉而传染上这种流感。
If the U.S. economy catches cold, will China get the flu?
如果美国经济着凉，中国会不会感冒？
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