前言：目的：摸清城区不同生境鼠类侵害现状，为有目的地降低鼠密度提供科学依据。

Objective: to know the infestation condition of rodents in Anyang city and supply scientific statistic to reduce the density of rodents.

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方法在清远市清城区和连州市采用同伴推动抽样法（RDS）招募社区IDU为干预对象；

Methods IDU were recruited using RDS method in Qingcheng District and Lianzhou City.

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