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目的分析岳池县2004—2008年流行性乙型脑炎(乙脑)流行特征,为其防治提供科学依据。方法采用描述性流行病学方法对岳池县2004—2008年的乙脑疫情资料进行分析。结果5年间共报告乙脑226例,年平均发病率为3.87/10万,发病率呈逐年下降趋势;发病高峰在7、8月,占发病总数的93.81%;男女性别比为1.60∶1;病例主要分布于1~7岁年龄组,占病例总数的87.61%(198/226);散居儿童发病最多,占病例总数的68.14%(154/226),其次是学生和托幼儿童,分别占病例总数的21.24%(48/226)、10.18%(23/226)。结论岳池县乙脑发病仍处于较高水平,应采取综合性措施加强防控工作。
Objective To analyze the epidemiological characteristics of Japanese encephalitis (JE) from 2004 to 2008 in Yuechi County and provide a scientific basis for its prevention and treatment. Methods Descriptive epidemiological methods were used to analyze the data of JE epidemic in Yuechi County from 2004 to 2008. Results A total of 226 Japanese encephalitis cases were reported within 5 years. The average annual incidence rate was 3.87 per 100 000. The incidence rate showed a declining trend year by year. The peak incidence peak was in July and August, accounting for 93.81% of the total. The sex ratio was 1.60: 1. The cases were mainly distributed in the age group of 1 to 7 years old, accounting for 87.61% (198/226) of the total cases; the incidence of diaspora was the most, accounting for 68.14% (154/226) of the total cases, followed by the students and kindergartens, accounting for The total number of cases 21.24% (48/226), 10.18% (23/226). Conclusion The incidence of Japanese encephalitis in Yuechi County is still at a high level. Comprehensive measures should be taken to strengthen prevention and control.