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为了掌握本地区学生常见肠道线虫的感染状况和驱虫药物的效果 ,加强学生常见肠道线虫的防治工作 ,保障广大学生健康成长 ,于 1 999年 6月在本辖区内对学生常见肠道线虫的感染状况进行了抽样调查 ,并对服驱虫药物后的效果进行了观察。现报告于后 :1 抽样与方法采取整群随机抽样
In order to grasp the common intestinal nematode infection and deworming drug effect of students in the region to strengthen students common intestinal nematode prevention and control work to ensure the healthy growth of students, in June 1999 in the area of common intestinal students The infection status of nematodes was investigated by sampling and the effect of taking the parasite medicine was observed. Now report after: 1 Sampling and methods Randomized cluster sampling