Previously, people had put these patterns down to younger people being more likely to encounter birds, or the virus being more aggressive in elderly people.

过去人们认为，发生上述模式是因为年轻人更容易感染禽流感，或禽流病毒对老年人的攻击力更强。

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The virus is transmitted to humans by close contact with infected birds or their excrement, and cannot be passed from human to human.

该病毒通过与受感染的鸟类或其粪便的密切接触传播给人类，不能在人与人之间传播。

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The gypsy moth is also subject to attack by the nucleopolyhedrosis virus, or wilt disease, a particularly important killer of the caterpillars in outbreak years.

舞毒蛾还会受到核多角体病毒或萎蔫病的攻击，在毛虫爆发的年代，这是一种特别重要的杀手。

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He says normally a protein in healthy immune cells causes the cells to die after they attack an invading virus or bacteria.

VOA: special.2010.05.19

And so even people that got vaccinated, most of us either have questionable or no protection against the virus at this point.

所以就算那些接种过天花疫苗的人,到那时候也不一定,或者压根无法抵御病毒

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The idea being if I find a pattern across multiple people's computers maybe all of those people are infected with the same kind of malware or virus or worm.

如果我从不同人的计算机中发现了一个模型,这就说明,所有那些人的计算机都感染了相同的,恶意软件，病毒或蠕虫。

哈佛公开课 - 计算机科学课程节选

"The best way to either eliminate the virus or allow the immune system to suppress residual virus is to treat someone as early as possible after infection so as not to allow a substantial reservoir of the virus to take hold, " Fauci told CNN.

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Each peptide has a weight that depends on whether it was produced from the original or the mutant virus.

ECONOMIST: Viruses

Patients in the trial were in the late stages of the disease, and were either being treated with a drug called GM-CSF or the new virus.

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