N an animal that acts as host to a parasite that has not yet become sexually mature 中间宿主
Objective To study the species and infection rate of intermediate host of Paragonimus.
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 investigate species, infection and breeding regulation of the intermediate host of Trichobilharzia in the Huaihe River System.
目的探讨淮河水系毛毕吸虫中间宿主椎实螺种类、感染情况及繁殖节律。
This virus was different because it moved directly from chickens to people, rather than having been altered by infecting pigs as an intermediate host.
这种病毒之所以不同,是因为它并没有通过传染猪,使猪成为中间宿主,而是直接由鸡传染给人类。
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