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目的了解江苏省钉螺和感染性钉螺分布情况,为制定防治规划提供科学依据。方法根据全国和江苏省血吸虫病疫情监测方案的要求,在全省血吸虫病流行区选择有代表性的82个流行村作为监测点,开展钉螺和感染性钉螺分布情况的监测调查。结果全省监测村中有42个监测村发现了钉螺,占监测村的51.22%;有10个监测村发现了感染性钉螺,占监测村的12.20%。监测村发现的钉螺面积占调查总面积的27.86%,发现的感染性钉螺面积占总有螺面积的17.35%。监测村总的钉螺密度为0.16只/0.1m2,总的感染性钉螺平均密度为0.00044只/0.1m2。结论全省螺情仍不容乐观,有可能成为2010年实现江苏省达到“血吸虫病传播控制”目标的主要制约因素。全省在今后的防治策略上,仍应加强钉螺,尤其是感染性钉螺的控制工作,以从根本上消除和降低血吸虫病的危害。
Objective To understand the distribution of Oncomelania snails and Incontinen in Jiangsu Province, and to provide a scientific basis for making prevention and control plan. Methods According to the requirements of the national and Jiangsu schistosomiasis surveillance programs, 82 representative endemic villages were selected as surveillance sites in the endemic areas of schistosomiasis in the province to monitor the distribution of snails and infectious snails. Results Snails were found in 42 monitoring villages in the monitoring villages in the province, accounting for 51.22% of the monitoring villages. Infectious snails were found in 10 monitoring villages, accounting for 12.20% of the monitored villages. The area of snails found in monitoring villages accounted for 27.86% of the total surveyed area, and the area of infected snails was found to account for 17.35% of the total snail area. The total snail density in the monitoring village was 0.16 /0.1m2, and the average infective snail average density was 0.00044 /0.1m2. Conclusion The spiral in the whole province is still not optimistic, which may become the main factor that will make Jiangsu achieve the target of “schistosomiasis transmission control” in 2010. The province in the future strategy of prevention and treatment, the snails should be strengthened, especially the control of infectious snails in order to fundamentally eliminate and reduce the harm of schistosomiasis.