It's reproduction of the virus and passage of that virus onto new cells which causes the problems with disease that we associate.

病毒一旦繁殖并进入新细胞,就会带来相关病症的危害

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What he's saying here is the following: "What we have learned over fifty years is that the disease model does not move us closer to the prevention of these serious problems.

他是这么说的：,“五十多年的经验告诉我们，疾病模型,不能让我们更有力地预防,这些严重问题。

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