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1987～1990年选择南洞庭湖湖沼型血吸虫病疫区,益阳县的曾明、大潭、石马3个村,分别进行单—扩大人畜化疗、扩大人畜化疗加1次性易感地带灭螺及常规防治对照试点。通过9年的防治,曾明、大潭2村居民粪检阳性率分别下降74.85％。80.61％,而石马村仅下降7.26％。3个村家畜粪检阳性率部下降80％以上。3个试区外洲螺情的各项指标变化均不大。认为对这类地区采取上述措施,能将人畜病情压缩到较低水平,但对于其外洲洲滩,在水位无法控制,大量外来传染源难以控制,阳性螺点依然存在的情况下,要达到控制血吸虫病流行是困难的。此外,本文还讨论了化疗覆盖面和化疗扩大面等问题。
From 1987 to 1990, three villages of Zengming, Tai-Tam and Shima in Yiyang County were selected for the schistosomiasis endemic area of Nan Dongting Lake lakes and swamps. Single and extended chemotherapy of human and animals, expansion of human and animal chemotherapy combined with one-off susceptibility to snail killing and Conventional control pilot. Through nine years of prevention and control, once, the positive rate of fecal seizures in residents of Tai Tam Village dropped 74.85%. 80.61%, Shima Village decreased only 7.26%. 3 village livestock manure positive rate of more than 80% decline. There were no significant changes in the indicators in the three pilot areas. It is believed that the above measures can reduce the human and livestock condition to a relatively low level. However, for those beaches outside Chau Island, where the water level can not be controlled, a large number of external sources of infection are difficult to control and the positive spiral points still exist, Control of schistosomiasis epidemics is difficult. In addition, this article also discussed the issue of chemotherapy coverage and chemotherapy expansion.