Blas B L
Southeast Asian J Trop Med Public Health. 1976 Jun;7(2):341-5.
Measures that would change the habitat of the snails were found to prevent its breeding. Among these are clearing and drainage of waterlogged areas; filling of depressions where filling materials are available; ponding of areas which cannot be drained, and improved rice culture. The degree of success in snail control depends to a large extent on the amount of change brought about in the habitat. The more radical the change, the greater the reduction in snail density. It can be expected that improvement in sanitation in the form of toilet construction and use, provision of safe water supply, building of footbridges and the control of stray animals will bring a further decline in the transmission of the disease. Studies have shown that perfect sanitation in the form of toilet construction and use will reduce transmission by about 75%, the other 25% being contributed by lower mammals. Agro-engineering control measures are presently being carried out intensively in 7 town of Leyte, with food assistance from the UN/FAO World Food Program being given to volunteer workers as incentives for them to work. Snail evaluation after 2 years has shown a snail reduction by 72% in the areas covered. It may be mentioned here that sanitation improvement, especially latrine construction, is an ongoing program of the Department of Health in all rural areas.
人们发现，改变蜗牛栖息地的措施可以阻止其繁殖。其中包括清理和排水涝渍地区；在有填充材料的地方填平洼地；对无法排水的地区进行蓄水，以及改进水稻种植。控制蜗牛的成功程度在很大程度上取决于栖息地改变的程度。改变越彻底，蜗牛密度的降低幅度就越大。可以预期，以建造和使用厕所、提供安全供水、建造人行桥以及控制流浪动物等形式的环境卫生改善，将使疾病传播进一步下降。研究表明，以建造和使用厕所形式的完善卫生设施将使传播减少约75%，另外25%由低等哺乳动物造成。目前在莱特省的7个城镇正在大力开展农业工程控制措施，联合国/粮农组织世界粮食计划署向志愿工作者提供粮食援助，作为他们工作的激励措施。2年后的蜗牛评估显示，所覆盖地区的蜗牛数量减少了72%。这里可以提到，改善环境卫生，特别是建造厕所，是卫生部在所有农村地区正在进行的一项计划。
