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目的为了解深圳市南山区健康人群乙脑抗体水平,评价其流行危险度。方法随机抽取南山区0岁～、5岁～、10岁～、15岁～、20岁～、30岁～、40岁～等年龄组各80～90人,采集血清标本用ELISA法检测抗体。结果检测南山区健康人群血清631份,乙脑IgG抗体阳性218份,总阳性率34.55%。不同年龄组间抗体阳性率有差异,20岁以上成人组乙脑抗体阳性率较低;男女性别的抗体阳性率差异无统计学意义。结论南山区健康人群乙脑免疫水平较低,一旦有输入性病例,暴发和流行的危险度较大。
Objective To understand the level of Japanese encephalitis B virus among healthy population in Nanshan District of Shenzhen City and evaluate its prevalence. Methods Nanshan District was randomly selected from 0 to 5 years old to 10 years old to 15 years old to 20 years old to 30 years old to 40 years old to 80 to 90 age groups. Serum samples were collected for the detection of antibodies by ELISA. Results There were 631 serum samples from healthy people in Nanshan District and 218 positive for JE IgG antibody. The total positive rate was 34.55%. The positive rates of antibody among different age groups were different. The positive rate of Japanese Encephalitis B was lower in adults over 20 years old. There was no significant difference in the positive rate of antibody between men and women. Conclusion There is a low level of encephalitis B in healthy population in Nanshan District. Once there is an imported case, the risk of outbreak and epidemic is high.