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为了解珠海市农村村民近年来寄生虫感染的动态变化，为今后的肠道寄生虫防治提供科学依据，我们于１９９７年９月开展了本次调查。调查对象与方法 （１）调查对象：按三级分层整群随机抽样的方法，抽取我市的山场、淇澳、红旗、斗门白蕉镇的灯笼村和新二村，井岸镇的新堂村等?
In order to understand the dynamic changes of parasitic infections in rural areas of Zhuhai in recent years and provide a scientific basis for the prevention and treatment of intestinal parasites in the future, we conducted this survey in September 1997. Subjects and methods of investigation (1) Subjects of survey: According to the random sampling method of stratified cluster by three levels, we took the mountain field, Qi’ao, Hongqi and Dengmen Bajiao town of Lancun village and Xin’er village of Doumen city, Village?