宿主与媒介
Host and vector
以上为机器翻译结果，长、整句建议使用 人工翻译 。
目的了解建瓯市并殖吸虫及媒介宿主的种类与感染情况。
Objective To study the species and infection rate of intermediate host of Paragonimus.
youdao
目的：了解河北省恙虫病疫源地的传播媒介与宿主。
Objective: to understand the vector and host of tsutsugamushi disease (TD) in certain village, Hebei province.
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