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目的了解疫苗应用后的乙肝流行现状,为制定科学的防治措施提供依据。方法采用描述流行病学方法,统计乙肝发病率、发病人群构成、疫苗接种率等,分析嘉兴市乙肝发病趋势。结果乙肝疫苗接种率历年维持较高水平,15岁以下人群发病明显减少,总人群发病水平下降缓慢,其在病毒性肝炎中的构成从1992年的24.22%升至2007年的61.55%,乙肝发病地区间呈现不平衡,无明显的季节性,发病人群以男性为主,农民发病居多,20～44岁出现发病高峰。结论除常规性的防控措施外,要对新生儿选择继续巩固高水平的乙肝疫苗接种率,适时地开展乙肝疫苗加强接种,同时应全面开展高年龄组人群的乙肝疫苗免疫接种。
Objective To understand the prevalence of hepatitis B after the vaccine application and provide the basis for making scientific prevention and control measures. Methods Descriptive epidemiological methods, statistics of incidence of hepatitis B, the incidence of population composition, vaccination rates, analysis of incidence of hepatitis B in Jiaxing City trend. Results Hepatitis B vaccination rate was maintained at a high level over the years, the incidence of the population under the age of 15 significantly reduced the incidence of the general population decreased slowly, its composition in viral hepatitis rose from 24.22% in 1992 to 61.55% in 2007, hepatitis B There are imbalances between regions, no obvious seasonal, the incidence of male-dominated populations, most of the incidence of farmers, the peak incidence of 20 to 44 years old. Conclusion In addition to routine prevention and control measures, newborns choose to continue to consolidate a high level of hepatitis B vaccination rate, timely launch of hepatitis B vaccination intensified vaccination, hepatitis B vaccine should be fully carried out in high-age groups.