甘肃省临夏州2010～2011年甲型病毒性肝炎流行病学特征

Epidemiological features of hepatitis A in Linxia Prefecture of Gansu Province during 2010～2011

目的分析甘肃省重点地区2010~2011年甲型病毒性肝炎流行特征,提出防控对策。方法利用中国法定传染病报告系统,对甘肃省临夏州2010~2011年甲肝疫情进行描述性流行病学分析。结果 2010和2011年临夏州甲肝报告病例为1009例、1728例,分别占当年全省总病例数37.92%、48.68%。比例均居甘肃省第一位,15岁以下病例占报告病例总数63.54%,其中5~9岁组发病率为272.06/10万;病例职业主要为散居儿童、学生及农民;以秋冬季高发;病例主要集中在经济欠发达的县。结论针对临夏州甲肝疫情流行特征,开展疫苗群体性接种、对高发地区人群开展健康教育以及严格控制学校疫情蔓延等综合防控措施可有效控制甲肝疫情。

Objective To analyse the epidemiological feature of hepatitis A in heavily infectious areas of Gansu province. Methods The data of hepatitis A were collected from National Nofifiable infeetous Disease reporting system in 2010-2011 and analyzed by using descriptive epidemiologieal methods. Results The incidence of hepatitis A in Linxia prefecture ranked the first in Gansu preventive and totally 1 009 and 1 728 cases were reported during 2010-2011 accounted for 37.92% and 48.68% of the total number of patients in Gansu province.The cases mainly concentrated in the age group of below 15 years （63.54%）,and 5-9 years. The incidence rate of hepatitis A was 272.06 per 100 000 in the age group 5-9 years. Most of the cases were scattered children,students and farmers in economically backward areas and frequently occurred in autumn and winter. Conclusions Integrated measures including immunization ,health education prevention the spread in in schools be adopted to control the infection of hepatitis B virus in this prefecture.