1999～2005年博白县流行性乙型脑炎疫情分析

目的]探讨博白县流行性乙型脑炎（乙脑）流行趋势及发病因素,为制定乙脑防治策略提供依据。方法]采用描述流行病学现况分析方法对1999-2005年乙脑疫情资料进行统计分析。结果]1999-2005年博白县报告乙脑病人140例,其中1999年84例、2004年38例,发病率分别为6.03/10万、2.54/10万,其余年份呈低水平散发;病例均于5-7月发病;2-7岁发病123例,占87.86%;有乙脑疫苗免疫史的40例,占28.57%。2000-2005年的56例中,30例既往接种过乙脑疫苗但当年未接种。结论]博白县乙脑流行季节较早,在预测可能流行年份提前对低年龄儿童进行乙脑疫苗普种具有现实意义。

Analysis on Epidemic Situation of Epidemic Encephalitis B in Bobai County from 1999 to 2005

Objective]To understand the epidemic situation and risk factors of epidemic encephalitis B in Bobai County so as to provide scientific basis for measuremaking.Methods]To analyze the data of the epidemic situation of epidemic encephalitis B from 1999 to 2005.Results]The epidemic season of epidemic encephalitis B in Bobai county was from 5 to 7 month,140 cases were reported,among which 84 cases occurred in 1999 with a mortality rate of 6.03 per 100 000,38 cases occurred in 2004 with a mortality rate of 2.54 per 100 000,it showed sporadic in other years.The differences of mortality rates between different years had statistic significance. 123 cases were 2-7 years old children with a percentage of 87.86%;40 cases had encephalitis B vaccine inoculation history(28.57%),among 56 cases occurred from 2000 to 2005,30 cases didn't inoculate vaccine in those year when they were infected,but had vaccine inoculation history before.Conclusion]The prevailing of epidemic encephalitis B occurred more earlier in each year in Bobai,it would have significance to strengthen the immunization for all low age children before the disease prevailing.