<< 豪斯医生 第5季 第02集>>
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1. Because before that they are protected...
因为在此之前 生母的免疫系统。
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2. by their biological mother's immune system.
能保护他们。
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3. So, was she vaccinated?
所以 她打疫苗了吗。
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4. An infant picks up a regular old measles virus.
婴儿染上麻疹病毒。
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5. Gets a rash.
会有皮疹。
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6. He's extremely uncomfortable, has a wicked fever,but he lives.
他会觉得很难受 发高烧，但不会危及生命。
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7. Here's the kicker.
但是有不定因素。
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8. Once every million or so times,the virus mutates.
病毒突变的几率，是百万分之一。
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9. Instead of Dan having a fever and a rash,the virus travels to his brain and hides,like a time bomb.
丹没有发烧或皮疹，是因为病毒潜入他的大脑中 隐藏起来，就像一颗定时炸弹。
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10. In this case, for 16 years.
在这个病例中 它潜藏了16年。