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目的了解洪泽湖地区钉螺孳生情况以及当地居民、渔船民血吸虫感染情况、疫区生活史和对血吸虫病的知晓情况。方法选择洪泽湖东侧的西河底滩和南侧的马庄引水渠开展钉螺调查;选择3个渔船民集散点及邻近洪泽湖的3个村进行病情调查,用胶体染料试纸条法(DDIA)对调查者进行血清学检查,阳性者用Kato-Katz法进行粪便检查。结果2007～2008年,共调查面积13440m2,打捞漂浮物412kg,投放稻草帘80块,调查船只86只,均未发现钉螺。DDIA检查2495人,阳性31人,阳性率为1.24%。女性阳性率显著高于男性,阳性者全部为渔船民和农民,年龄多为30～60岁。粪检29人,未发现阳性病人。2.81%的受检者到过血吸虫病疫区,0.36%患过血吸虫病,其中7.73%的渔船民到过血吸虫病疫区,1.29%的渔船民患过血吸虫病。血吸虫病防治知识知晓率为17.43%。结论洪泽湖地区未发现钉螺和血吸虫感染者,渔船民和农民是监测的主要对象。应做好长期血吸虫病监测工作,加强健康教育。
Objective To understand the snail breeding in Hongze Lake region as well as the infection of schistosomiasis by local residents and fishing boat people, the life history of the affected area and the status of schistosomiasis. Methods Snail investigation was carried out at Xihedi Beach on the east side of Hongze Lake and Mazhuang Channel on the south side. Three fishing boat population distribution points and three villages near Hongze Lake were selected for disease investigation. (DDIA) conducted a serological survey of the investigators, and positive patients were subjected to a stool examination using the Kato-Katz method. Results From 2007 to 2008, a total area of 13,440m2 was investigated, and 412kg of floating debris were salvaged. There were 80 rice straw curtains and 86 surveyed vessels. No snail was found. DDIA check 2495 people, 31 were positive, the positive rate was 1.24%. The positive rate of women was significantly higher than that of males, all of them were fishing boatmen and peasants, mostly aged 30-60 years old. Manure seized 29 people, found no positive patients. 2.81% of the subjects had been to schistosomiasis-endemic areas, 0.36% had schistosomiasis, of which 7.73% of the fleet had been to schistosomiasis-infected areas and 1.29% of the refugees had schistosomiasis. Schistosomiasis prevention knowledge awareness rate of 17.43%. Conclusion No snail and schistosome infection were found in Hongze Lake area. Fishing boatmen and peasants were the main targets of monitoring. Long-term monitoring of schistosomiasis should be done to strengthen health education.