山东金乡县控制肠道线虫病试点研究

STUDIES ON STRATEGY FOR LARGE SCALE CONTROL OF INTESTINAL NEMATHELMINTHIASIS

为了全面开展肠道线虫病防治工作，我们于１９９３～１９９５年在金乡县全县范围进行了控制肠道线虫病试点研究。采取的措施：一是普遍开展卫生宣传；二是改善环境卫生；三是药物驱虫。根据感染率的不同，对全县１４个乡镇６２万人口采取三种服药方案。在高感染率地区（感染率４０％以上）采用全民服药；中感染率地区（感染率２０％～３０％）采用１５岁以下儿童服药；低感染率地区（感染率２０％以下）只给中小学生服药驱虫。连续进行３年防治后，经考核人群肠道线虫总感染率由防治前的３１．５％降至９．０％，下降７１．４％，三类型比防治前下降６４．３％～７６．１％。结果说明，在不同感染率地区采用不同的服药措施，可获得较好的防治效果。

In order to carry on a massive campaign against intestinal nemathelminthiasis in Shandong Province,the studies on strategy of control of intestinal nemathelminthiasis were conducted in Jinxiang conuty in 1993-1995. All the 14 townships in this county were divided into 3 experimental patterns according to the infective rates in residents. The measures we taken included:mass health propagation;management of environmental sanitation and expulsion of parasites by drug administration. Massive administration was applied in heavy infective areas(with over 40% infective rate),drug administration was applied only for children under 15 of age in moderate infectiveareas(with the infective rate of 20%-30%),and only for students of primary and middle school in mild infectiv e areas(less than 20% of infective rate). Through 3year control campaign the total infective rate in the residents has dropped down to 9.0% from 31.5%,with decline rate of 71.4%. There was no difference among the 3 patterns of areas in decline rate. The results of this study demonstrated that the different control measures taken in the 3 areas different in infective rates have received basically the same efficiency. It indicated that the first thing to do before a large scale control is to stratify the experimental areas according to the infective rates in the residents and then to take classification control measures. It is not necessary to conduct largescale survey and massive treatment which would waste too much human powers and materials.