河北省计划免疫第三个85%目标审评麻疹抗体水平监测

Surveillance of Measles Antibody in EPI Review Targeted Age Group in Hebei Province

１９９６年４月，河北省在接受计划免疫第三个８５％目标审评时，除对儿童进行接种率调查外，还用ＥＬＩＳＡ方法检测麻疹抗体。结果表明：８７０名儿童麻疹抗体阳性率为９１０％，几何平均滴度（ＧＭＴ）为１：５２４８１。各地儿童麻疹抗体阳性率和ＧＭＴ的差异有显著的统计学意义，而不同地貌、城乡和性别之间均无显著差异。提示全省该年龄组儿童麻疹抗体阳性率处于较高水平，但ＧＭＴ偏低。结合接种率和疫情资料分析，近年河北省不会发生麻疹流行，但由于各种原因造成的易感者积累。

A surveillance of measles antibody was carried out in 1996 by ELISA method besides the evaluation of the vaccine coverage rate during the Expanded Programs on Immunizatiion Review priod. The results showed that the measles antibody positive rate was 91.0%, GMT was 1∶524.81. There were significant differences of positive rate among the prefectures, but not between rural and urban areas and sexes. The measles antibody of the targeted age group was high, but the GMT was in low level. Both the antibody level and the measles surveillance data indicated that it was not possible to have a measles epidemic in the next few years, but perhaps there would be local otrbreak and measles increasing cases in some special regions due to the accumulation of the susceptible persons.