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圣卢西亚RicheFond山谷的5个村庄,人口2,000左右,于1970～1972年每个家庭安装了供水设备。本文报告了该项措施在14岁以下儿童中对曼氏血吸虫减少传播的效果。同一谷地另一位置亦有2,000左右人口的6个村庄作为对照区,1969年在那里只建有16个公共给水站,间隔350米设1个。建公共给水站前的对照区和装备家庭供水设备前的防制区,居民的日常生活用水都是溪水或河水,为曼氏血吸虫的主要传播来源。现场调查中年龄组的划分,儿童每5岁一组,成人每10岁一组,经抽样核实,认为这
Five villages in the RicheFond valley of Saint Lucia, with a population of about 2,000, installed water-supply equipment for each family from 1970 to 1972. This article reports the effect of this measure on reducing the spread of Schistosoma mansoni among children under 14 years of age. In the same valley, another village with a population of about 2,000 also serves as a control area. In 1969 there were only 16 public water supply stations built there, one at an interval of 350 meters. To build a control area in front of a public water supply station and a control area in front of a household water supply equipment, the residents’ daily water use is stream or river water and is the main source of transmission of Schistosoma mansoni. Field investigation of the division of age groups, children every 5-year-old group, every 10-year-old adult group, the sample verified that this