江滩地区不同防治对策控制血吸虫病传染源及滩地污染效果观察

OBSERVATION ON THE EFFECT OF DIFFERENT STRATEGIES TO CONTROL INFECTION SOURCES OF SCHISTOSOMIASIS AND CONTAMINATION IN RIVER BEACH REGIONS

根据江滩地区血吸虫病流行特点，分别实施“人畜化疗＋健康教育”及“江滩综合治理＋人畜化疗＋健康教育”策略，结果表明各试区人群血吸虫感染率下降了８０％以上，感染度下降了９０％以上，耕牛血吸虫感染率下降了７０％以上，滩地野粪阳性率显著下降，滩地污染得到有效控制。而实施一般防治对策的对照试区人群血吸虫感染率年间变化幅度不大，耕牛感染率仍较高，滩地污染相当严重。

According to the epidemiological characteristics of schistosomiasis in river beach regions, we made and carried out different control strategies in 6 selected endemic areas. The results showed that in the pilot areas where "chemotherapy+health education" or "beach harnessing+chemotherapy+health education" was carried out, the peoples infection rate of Schistosoma japonicum reduced more than 80%, the infectiosity reduced more than 90%, the infection rate of cattle reduced more than 70%, the positive rate of wild faeces decreased remarkably, the contamination in beach was controlled effectively. However, in control areas where general control strategy was carried out ,the peoples infection rate changed little year by year, the infection rate of cattle was rather higher, the contamination was still serious, the prevalence of schistosomiasis has not been controlled effectively.