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。
Results 12 species of snails were detected as intermediate host that transmit parasitic diseases of Angiostrongylus cantonensis.
结果发现传播广州管圆线虫病的中间宿主螺类共12种。
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。
Objective Understand the infection status of Angiostrongylus cantonensis in main intermediate host sampled from market and restaurant in Guiyang.
目的了解贵阳市流通及餐饮市场广州管圆线虫主要中间宿主的感染状况。
Objective To investigate the species, infection rate and rhythm of reproduction of the Lymnaeidae, 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的种类、感染情况及繁殖节律。
It has been demonstrated that Schistosome is pathogen of schistosomiasis, and the mammalian animal (the end host) and snails (the intermediate host) are their two hosts.
研究表明，血吸虫是血吸虫病的病原体，哺乳类动物(终末宿主)和钉螺(中间宿主)是血吸虫的两个宿主。
Objective Investigation of the species ofParagonimus, its first and second intermediate host (snail and crab) and the infection rate ofParagonimus in Songxi county, Fujian province.
目的调查福建省松溪县肺吸虫虫种，第一、二中间宿主及其感染率。
Objective To investigate the environmental characteristics of habitats in river - beach type endemic areas, and explore the optimal measures for eradicating the intermediate host snails.
目的掌握河道型血吸虫病流行区钉螺孳生地的环境特点，提供最优的灭螺措施。
Methods The breeding environment and the density of intermediate host were observed at regular intervals and the natural infectious status of intermediate host was surveyed by dissection.
方法定期对中间宿主孳生环境和中间宿主的密度观察，并解剖检查中间宿主自然感染情况。
Methods The breeding environment and the density of intermediate host were observed at regular intervals and the natural infectious status of intermediate host was surveyed by dissection.
方法定期对中间宿主孳生环境和中间宿主的密度观察，并解剖检查中间宿主自然感染情况。
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