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1996年3月,采取分层随机抽样的方法.对日照市部分地区的人群,进行了脊髓灰质炎抗体检测(由山东省卫生防疫站负责抗体测定工作)。检测结果表明,在三个型的抗体阳性率都在92％以上(Ⅰ、Ⅱ、Ⅲ型分别为96.22％、95.45％和92.83％)的同时,也发现有一个自然村4名3岁以内儿童脊髓灰质炎Ⅰ、Ⅱ、Ⅲ型抗体均为阴性。这一自然村位于日照市南部沿海,经济条件在全市属中上等水平。在该村抽查3岁以内儿童15人,脊髓灰质炎抗体阳性结果分别为Ⅰ型10/15、Ⅱ型11/15、Ⅲ型11/15。4名三个型全部阴性的儿童均
In March 1996, a stratified random sampling method was adopted, and polio antibodies were tested against the population in some areas of Rizhao (measured by the Shandong Provincial Health and Epidemic Prevention Station). The test results showed that in the three villages of positive antibody rates were above 92% (Ⅰ, Ⅱ, Ⅲ, respectively 96.22%, 95.45% and 92.83%), also found a natural village 4 children within 3 years of age spinal cord Gray matter Ⅰ, Ⅱ, Ⅲ antibodies were negative. This natural village is located in the southern coastal Rizhao City, the economic conditions in the city is the highest level. In the village, 15 children aged less than 3 were randomly selected. The positive results of poliovirus were type I 10/15, type II 11/15, type III 11/15.4 all three negative children