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1987年,本市的象山县和北仑区作为全国寄生虫分布调查试点县(区),在此基础上于1990年对本市其他9个县(市、区)进行了人体肠道寄生虫感染抽样调查,现报告如下:对象与方法一、对象(一)要求每个调查点以村(街道)为单位,总人口必须在500人以上,受检率不低于90%。调查点全部居民均为应检对象。(二)全市共设18个调查点。象山县和北仑区按全国调查统一方案,以不同方位、经济和卫生状况分别抽取4个点和5个点;其余9个县(市、区)各取1个点。
In 1987, the Xiangshan County and Beilun District of this Municipality were the pilot counties (districts) for the survey of the distribution of parasites in the whole country. On this basis, samples of intestinal parasites of the human intestinal tract were collected from other 9 counties (cities and districts) in 1990 The investigation and the report are as follows: Object and method I. Object (I) Require every survey point to be a village (street) with a total population of more than 500 people and a minimum examination rate of 90%. All residents at the investigation point should be subject to inspection. (B) The city a total of 18 survey points. According to the unified national survey plan, Xiangshan County and Beilun District draw 4 points and 5 points respectively with different directions, economic and health conditions; and the other 9 counties (cities and districts) take 1 point each.