鄱阳湖湖北钉螺日本血吸虫和外睾吸虫尾蚴逸出模式及其
流行病学的初步调查
Yassir Sulieman;Theerakamol Pengsakul;黄帅钦;彭午弦
【期刊名称】《中国人兽共患病学报》 【年(卷),期】2013(029)004
【摘要】Digenean trematodes are a widespread group of parasitic flatworms that use snails somewhat exclusively as their first intermediate host and one species can competitively exclude other species in a single individual snail. In this study, prevalence of the trematodes, Schistosoma japonicum and Exorchis sp., among populations of Oncomelania hupensis and population density of the snail in four different marshland locations around Poyang Lake, China, was studied during spring (April) and autumn (October) of 2012, by using a 0.11 m2 frame sampler. Also, the rhythm of cercarial liberation of the two trematodes from this area was investigated. Results showed that the prevalence of Exorchis sp. infection among O. hupensis populations was high (2.01%), compared to S. japonicum (0.15%) over the four investigated sites during the spring- and autumn-collected samples. The mean density of live snails in spring was 12.2 per 0.11 m2 with overall infection of 0.3 snail per 0.11 m2;while in autumn, the mean density of live snails was 6.7 per 0.11 m2 with infection rate of 0.2 snail per 0.11 m2. Cercarial release pattern from S. japonicum was circadian,
鄱阳湖湖北钉螺日本血吸虫和外睾吸虫尾蚴逸出模式及其流行病学的
