四川省血吸虫病流行状况-2001年抽样调查报告

目的为了准确掌握全省血吸虫病流行现状 ,制定切实可行的防治策略。方法建立流行村疫情管理系统 ,为全省流行村建立耕牛登记卡、钉螺登记卡和晚期血吸虫病登记卡 ,为传播未控制区和控制区的 794万人建立了血防户口册。随机抽样调查居民 6 5 35 6 9人 ,查牛 1 5 6 0 0头 ,查螺 70 1 0 6 5 98m2 。结果 :全省流行县 (市、区 )6 2个 ,流行乡 81 0个 ,流行村 6 2 1 2个 ,流行县总人口 30 92万人 ,流行村总人口 94 5万人 ,流行村耕牛存栏2 2 2 5 6 7头 ,历史累计钉螺面积 2 76 1 7万 m2 ,现有钉螺面积 6 71 6万 m2 ,活螺密度 0 .4 3只 / 0 .1 1 m2 ,钉螺感染率0 .0 6 97% ,感染螺密度 0 .0 0 0 3只 / 0 .1 1 m2 。全省现有晚期血吸虫病 1 5 6 8人 ,2 0 0 1年发生急性血吸虫病 5 3例 ,全省血吸虫病感染 79391人 ,病牛 1 4 4 2 7头。结论传播未控制区应加大人、畜查治病力度 ,降低感染率和感染度。传播控制区各级政府应加大血防经费投入 ,尽快控制疫情迅速回升势头。“十五”期间计划达标的县 (市、区 )应严格执行国家标准 ,达标时就建立完善的监测巩固措施

Schistosomiasis Situation in Sichuan Province-Report of Sampling Survey in 2001

Objective To master the current situation of schistosomiasis endemicity in Sichuan Province so as to work out practical control strategy. Methods In transmission uncontrolled and controlled endemic areas, schistosomiasis disease information management system including census record for registering the situation of case screen, treatment, advanced or acute infections, snail and cattle has been established among 7.94 million villagers based on village as unit. In 2001, a random sample of 653 569 residents, 15 600 cattle were examined and 70 106 598 m 2 snail habitats surveyed. Results There were 810 endemic townships with 6 212 endemic villages distributed in 62 endemic counties (cities, districts). The total population of endemic counties and endemic villages were 30.92 million and 9.45 million respectively. The total cattle in endemic villages was 222 567 heads.The historical accumulated snail habitats reached 276.17 million m 2 and the present snail habitats were 67.16 million m 2. The density of living and infected snail was 0.43 snail/0.11m 2 and 0.000 3snail/0.11m 2 while the snail infection rate 0.069 7%. There were 79 391 human infections, 1 568 advanced cases, and infected cattle 14 427 heads. In 2001, a total of 53 acute cases occurred. Conclusion In order to decrease the infection rate and intensity, case screen and treatment of human and cattle infections should be strengthened in uncontrolled areas. In transmission controlled areas, schistosomiasis control funds invested by different government levels should be increased so as to control the resumption tendency of endemic situation. In endemic counties (cities, districts) planned to achieve the transmission interrupted criterion during the 10th Five-Year Plan, the national criterion should be strictly implemented and perfect surveillance and consolidation measures be established after achieving the criterion.