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为了掌握沂蒙山区健康人群脊髓灰质炎（脊灰）免疫水平的基础资料，为消灭脊灰提供科学依据，我们于１９９５年１０月～１９９６年１月，采用微量中和试验法，对平邑、沂南和苍山３个县的部份健康人做了血清流行病学调查。用分层抽样法抽取调查对象。将我市按地理位置划分...
In order to grasp the basic data of polio (polio) immunity of healthy people in Yimeng mountain area and provide a scientific basis for the eradication of polio, we used the method of micro-neutralization from October 1995 to January 1996, Serum epidemiological survey was done on part of healthy people in Yinan and Cangshan counties. Using stratified sampling method to extract the survey object. The city by geographical location ...