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目的了解2014年淮安市健康人群乙型脑炎抗体水平。方法采用蚀斑减少中和实验,分7个年龄组测定健康人群乙脑抗体水平,每个年龄组50人份,采集血清标本,共350人。结果淮安市健康人群乙脑抗体阳性率为62.86%,标化阳性率88.04%。不同年龄段人群乙脑抗体阳性率差异有统计学意义(χ2=72.79,P<0.05);有免疫史和无免疫史人群抗体阳性率差异有统计学意义(χ2=5.06,P<0.05);不同性别健康人群乙脑抗体阳性率差异无统计学意义(χ2=2.28,P>0.05)。结论加强小年龄组人群的乙脑疫苗免疫接种工作,加强儿童免疫监测。
Objective To understand the antibody levels of Japanese encephalitis in healthy population in Huaian in 2014. Methods The plaque reduction neutralization test was used to determine the level of Japanese encephalitis antibody in healthy people in seven age groups, with 50 samples in each age group. A total of 350 serum samples were collected. Results The positive rate of JE antibody in healthy population in Huaian City was 62.86%, and the positive rate was 88.04%. The positive rate of Japanese encephalitis B was statistically different among different age groups (χ2 = 72.79, P <0.05). There was a significant difference in antibody positive rate among those with or without immunization (χ2 = 5.06, P <0.05). There was no significant difference in the positive rate of Japanese encephalitis antibody between different sexes (χ2 = 2.28, P> 0.05). Conclusions Strengthen the vaccination of JE vaccine in the younger age groups and strengthen the monitoring of childhood immunization.