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目的分析1991—2010年内蒙古自治区(内蒙古)甲型病毒性肝炎(甲肝)流行特征,为甲肝防治工作提供依据。方法应用Excel软件对1991—2010年法定传染病报告系统报告的甲肝疫情资料进行描述流行病学分析。结果内蒙古甲肝发病率由1991年的47.81/10万下降到2010年的0.97/10万,占传染病发病比例由1991年的22.91%下降到2010年的0.23%。全年均有发病,冬季和春季发病高峰逐渐被削平,流行季节性已不明显。男性发病多于女性,主要发病年龄由5~14岁变为20~54岁。农民等成人群体代替学生和散居儿童成为主要的发病人群。结论内蒙古甲肝发病呈逐年下降的趋势,继续加强查验接种证和查漏补种疫苗工作对消除免疫空白人群至关重要,加强对学校和托幼机构等场所的卫生监管和接种甲肝疫苗是控制甲肝流行与暴发的有效手段。
Objective To analyze the epidemiological characteristics of hepatitis A virus in Inner Mongolia Autonomous Region (Inner Mongolia) from 1991 to 2010, and provide a basis for the prevention and control of hepatitis A. Methods The software of Excel was used to describe the epidemiological data of hepatitis A outbreak reported by the notifiable infectious disease reporting system from 1991 to 2010. Results The incidence of hepatitis A in Inner Mongolia decreased from 47.81 / 100000 in 1991 to 0.97 / 100000 in 2010, accounting for 0.23% of the total incidence of infectious diseases from 22.91% in 1991 to 0.23% in 2010. The incidence of all year round, peak incidence in winter and spring gradually be flattened, seasonal epidemic is not obvious. Male incidence of more than women, the main age of onset from 5 to 14 years old to 20 to 54 years old. Adult groups such as farmers instead of students and diasporas have become major groups of people who are affected. Conclusion The incidence of hepatitis A in Inner Mongolia shows a declining trend year by year. It is of crucial importance to continue to strengthen the work of checking vaccination certificates and checking leak vaccines to strengthen the health supervision and vaccination against hepatitis A in schools and nurseries, and to control hepatitis A Epidemic and outbreak of effective means.