中风率的提高与艾滋病人服用一种更新和更有效的艾滋病药物存在时间上的巧合。
The increase in strokes coincides with the use of newer, more effective AIDS medicines.
在基本再生数的指导下，通过提高防病毒系统预装率，能减弱机器更新带来的负面影响，并能有效抑制蠕虫的传播。
Under the guidance of basic reproduction number, the negative effect can be alleviated and worms can be terminated by introducing a anti-virus system of high initial installation rate.
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