Ebola was so deadly and killed so quickly that within a short period of time, there was no one around to infect.

埃博拉病毒十分致命，致死速度极快，以至于在短时间内，周围没有健康的人可以再被病毒感染。

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For a while it might be able to make new viruses that could re-infect the same cell, but over enough time, the viruses would become disabled.

有时也可能产生新的病毒，再次感染同一细胞，但在足够长的时间里，该病毒将会失去感染力。

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Sick employees don't just affect their own work; they infect coworkers who then need to take time off themselves. (or who come in sick and spread the germs further.)

病了的员工不但影响到自己的工作，还会把病传染给同事们，随后他们也要去请假，或者继续上班，传播更多的病毒。

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Unless immunisation is re-started promptly it will allow the virus time to spread and infect more children.

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As with any vaccine, the aim is to prompt the immune system to recognise this outer shell and destroy the pathogen before it has time to lock onto cells and infect them with its genetic material.

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In early experiments, Bhatia's lab, called the Laboratory for Multiscale Regenerative Technology, was able to infect her liver cells with malaria for the first time two weeks ago and hopes to be able to offer malaria researchers a way to test drugs that will kill the hypnozoites.

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