安徽省部分地区麻疹疫苗初始强化免疫活动效果分析

Analysis on the Effect of Measles Catch-up Immunization Campaigns in Several Districts of Anhui Province

本文报告了安徽省加速控制麻疹策略实施方面的进展．通过1997年底在3个地区（市，下同）进行麻疹疫苗（MV）初始强化免疫，1-6岁儿童麻疹血凝抑制（HI）抗体阳性率上升到100％，几何平均滴度（GMT）从1：18．97增长到1：43．45,1998年1-6月3个地区麻疹发病数大幅度减少，与1996年、1997年同期相比分别下降了84．17％和87．71％，未出现麻疹的暴发，说明MV初始强化免疫控制麻疹效果明显．我省拟于近期继续在其余地区开展MV强化免疫，将MV复种年龄提前到4岁．同时，更加注重巩固和提高MV常规免疫接种率，加强麻疹病例的监测和开展控制风疹工作．

This paper summaried the progress of speding up the control strategies on measles in Anhui Province. Three prefectures (cities, the same below) had conducted measles catch-up immunization campaigns by the end of 1997. The positive rates of measles antibody among children aged 1-6 years increased to 100%, GMT increased from 1: 18.97 to 1:43.45 after the campaigns. The measles cases of the three districts from January to June 1998 decreased remarkably, reduced by 84.17% and 87.71%, as compared with the cases in 1996 and 1997 respectively. There was no measles outbreak. These facts indicate that conducting catch-up immunization campaigns is effective tocontrol measles. We are going to conduct measles catch-up immunization campaigns in other regions recently. The second dose of MV wb be administered in advance to the children aged 4 years. We also pay more attention to achieve and maintain high MV coverage,and strengthen measles surveillance and control rubella.