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目的观察四川省普格县血吸虫病综合治理4年的效果,为高山峡谷型血吸虫病流行区防治提供经验。方法收集综合治理试点2005～2008年的血吸虫病干预措施和疫情等资料,对血吸虫病疫情变化进行分析。结果经过4年的综合防治,各村人群血吸虫感染率均降低并维持在1%以下,2008年试点区人群血吸虫感染率较2005年下降93.91%(χ2=162.27,P<0.01);家畜感染率迅速下降至1%以下,2008年家畜平均感染率较2006年下降94.69%(χ2=97.95,P<0.01);有螺面积下降近1/3,活螺密度由2005年的0.42只/0.1m2下降到2008年的0.09只/0.1m2;2007年后未再发现阳性钉螺。结论高山峡谷型流行区实施传染源和钉螺控制并重的综合防治措施能迅速控制血吸虫病疫情。
Objective To observe the effect of comprehensive treatment of schistosomiasis for four years in Puge County, Sichuan Province, and to provide experience for the prevention and control of endemic schistosomiasis in alpine gorge. Methods The data of schistosomiasis interventions and epidemic situation collected from 2005 to 2008 in integrated pilot programs were collected to analyze the epidemic situation of schistosomiasis. Results After 4 years of comprehensive prevention and control, the infection rates of schistosomiasis in each village decreased and remained below 1%. The prevalence of schistosoma infection in pilot population in 2008 dropped by 93.91% compared with that in 2005 (χ2 = 162.27, P <0.01) The average infection rate of livestock decreased by 94.69% (χ2 = 97.95, P <0.01) in 2006 compared with that of 2006; the snail area decreased by nearly 1/3, and the live lobe density decreased from 0.42 /0.1m2 in 2005 Down to 0.09 / 0.1m2 in 2008; Conclusion The integrated prevention and control measures of both infection source and snail control in alpine gorge endemic areas can control the epidemic situation of schistosomiasis rapidly.