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目的分析云南省禄丰县1986年达到血吸虫病传播阻断后疫情变化,为消除血吸虫病提供参考依据。方法1987-2014年采用系统抽样结合环境抽查法调查禄丰县螺情,特殊环境采用全面细查法调查;人群病情监测采用血清学方法筛查,阳性者再用尼龙绢集卵孵化法确诊;家畜病情监测采用塑料杯顶管孵化法。结果 1987-2007年21年中,除1988年和1994年由于调查范围较小没有查出钉螺外,其余各年均查到活螺;2001年检出输入性血吸虫感染病牛2头,未检出本地病畜。自2004年起采取以社会措施为主导、消灭残存钉螺为重点的综合治理措施,自2008年以来已连续7年查不到钉螺,亦未检出血吸虫感染病人和病畜。结论禄丰县血吸虫病传播阻断成果巩固;但很多历史有螺环境尚未得到改造,仍具备钉螺孳生条件,须继续开展螺情监测。
Objective To analyze the epidemic situation of schistosomiasis transmission in Lufeng County of Yunnan Province in 1986, and provide reference for eliminating schistosomiasis. Methods From 1987 to 2014, the system of sampling and environmental sampling was used to investigate the Luoling County spirochetes. The special environment was investigated by comprehensive and detailed investigation. The disease surveillance of the population was screened by serological method. The positive samples were confirmed by nylon silk hatching method. Disease monitoring using plastic cup top tube hatching method. Results In the 21 years from 1987 to 2007, there were 2 live snails found in each of the remaining years except for the snail found in 1988 and 1994 due to the small survey area. In 2001, 2 imported cattle were infected with schistosomiasis, Out of the sick animals. Since 2004, we have taken comprehensive measures focusing on social measures and eliminating residual snails. Snail snails have not been detected for seven consecutive years since 2008, and schistosomiasis-infected patients and sick animals have also not been detected. Conclusions The results of schistosomiasis transmission in Lufeng County have been consolidated. However, many historic snails have not been transformed and still have snail breeding conditions. Surveillance should be continued.