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为了对陕西省近 10年脊髓灰质炎 (脊灰 )的免疫状况做出科学的评价 ,在地理特点不同、经济发展程度各异的 3个地区采集 0～ 39岁健康人群血标本 86 6份测定脊灰抗体。脊灰Ⅰ、Ⅱ、Ⅲ型中和抗体阳性率分别为96 88%、98 0 4%、92 73%,几何平均滴度 (GMT)分别为 1∶2 5 9 30、1∶10 3 6 9、1∶5 2 6 9。表明通过口服脊灰疫苗的常规免疫和强化免疫 ,陕西省健康人群对脊灰已形成牢固的免疫屏障。
In order to make a scientific assessment of the immune status of poliomyelitis (polio) in recent 10 years in Shaanxi Province, 866 blood samples of healthy people aged 0-39 were collected from 3 areas with different geographical features and different degrees of economic development Polio antibodies. The positive rates of neutralizing antibodies of type Ⅰ, type Ⅱ and type Ⅲ of poliovirus were 96 88%, 98 0 4% and 92 73%, respectively. The geometric mean titers (GMTs) were 1: 259 30, 1:10 3 6 9 , 1: 5 2 6 9. It shows that poliovirus has formed a solid immune barrier to polio in Shaanxi province through routine immunization and boost of oral polio vaccine.