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为控制血吸虫病在城市的流行 ,以武汉市城区为对象 ,对城市血吸虫病流行因素及特点进行了研究。结果显示 ,在城市血吸虫病流行病学中 ,人和耕牛是主要传染源。江滩主要污染源是牛粪 ,其次是人粪。与农村血吸虫病相比 ,城市血吸虫病具有以下明显不同的流行特点 :(1)感染方式主要为非生产性接触疫水 (80 .2 % ) ;(2 )感染季节集中 ,91.7%的感染发生在 6、7、8月 ;(3)感染高峰年龄组在 7～ 40岁人群 ;(4 )工人和学生为城市血吸虫病的主要感染人群。此外、城区江滩钉螺主要来源于城区上游 2 0 km范围内的有螺洲、岛。江滩钉螺的分布与江滩的土质、植被、滩面高程、坡度及水流状态有关。
In order to control the prevalence of schistosomiasis in the city and to study the epidemic factors and characteristics of schistosomiasis in the city of Wuhan, The results show that in the epidemiology of schistosomiasis, human and cattle are the main source of infection. River beach main source of pollution is cow dung, followed by human dung. Compared with rural schistosomiasis, the prevalence of schistosomiasis in urban areas was significantly different from that of the following: (1) The main mode of infection was unproductive exposure to infectious water (80.2%); (2) Infection season was centralized and infection (91.7%) occurred In June, July and August; (3) peak infection age group in the age group of 7 to 40 years old; (4) workers and students as the main infectious population of urban schistosomiasis. In addition, the snail on the beach of the urban area mainly comes from the Lo Island and the island within the range of 20 km upstream of the urban area. The distribution of snails on the beach is related to the soil quality, vegetation, beach surface elevation, slope and current status.