云浮市婴幼儿乙型脑炎抗体水平分析

Analysis of levels of antibody to encephalitis B in babies and children in Yunfu City

目的了解云浮市婴幼儿乙型脑炎抗体水平. 方法在云浮市随机抽取8足月～10岁儿童共536份血液标本,采用反向被动血凝抑制试验（RPHI）检测乙脑IgG抗体. 结果受检儿童乙脑抗体阳性率为89.1% ,GMRT平均值为149.7.各年龄组乙脑抗体阳性率和 GMRT差异无显著性.但随着年龄的增长,阳性率有逐渐降低的趋势. 结论加强儿童乙脑基础免疫工作,对预防和控制乙脑爆发有积极意义.

Objective To understand the level of antibody against encephalitis B in babies and infants aged from 8 months to 10 years old in Yunfu City. Methods About 536 blood samples were randomly gathered from babies and infants at the age of from 8 months to 10 years old in Yunfu City and reverse passive hemoglutination inhibition test （RPHI） was used for determination of IgG antibody against encephalitis B. Results The positive rate in the children was 89.1% with an average GMRT of 149,7. No significant differences the positive rate of antibody to encephalitis B and GMRT in various age groups were observed. The positive rate of antibody showed an decreasing tendency along with the increase of age. Conclusion It is of importance to strengthen the vaccination for preventing and controlling the outbreak of encephalitis B in this city.