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目的通过分析广东省潮州市2009年甲型H1N1流感(甲流)疫情的流行病学特征,为制定防控策略提供科学依据。方法收集疾病监测信息报告管理系统中甲流确诊病例信息,用描述性流行病学方法进行分析。结果潮州市7月29日出现首例输入性病例,10月26日出现本地暴发疫情,截至12月31日全市共报告192例确诊病例,8例重症病例(4.2%),无死亡病例。病例主要集中在10~12月,11月达到高峰(40.6%);病例报告以湘桥区最多,占52.1%;病例中男性占58.3%;发病年龄主要集中10~19岁年龄段,占66.7%;学生病例占83.9%;7起暴发疫情均发生在学校,确诊病例占全部病例的39.6%,罹患率最高的学校为1.7%(53/3 065)。结论潮州市2009年甲流发生的重点人群为20岁以下的学生,暴发疫情主要在学校。
Objective To analyze the epidemiological characteristics of Influenza A (H1N1) influenza in 2009 in Chaozhou, Guangdong Province, and provide a scientific basis for making prevention and control strategies. Methods The information of cases diagnosed in case A was collected and analyzed by descriptive epidemiological method. Results The first imported case occurred on July 29 in Chaozhou City, and the local outbreak on October 26. As of December 31, a total of 192 confirmed cases, 8 severe cases (4.2%) and no deaths were reported in the city. The cases mainly concentrated in 10 ~ December and reached the peak in November (40.6%). The cases reported were the highest in Xiangqiao District, accounting for 52.1%; the cases were 58.3%; the age of onset was mainly 10 ~ 19 years old, accounting for 66.7% %; Student cases accounted for 83.9%; 7 outbreaks occurred in schools, the diagnosis of cases accounted for 39.6% of all cases, the highest attack rate of 1.7% of schools (53/3 065). Conclusion In 2009, the key population of A-flow in Chaozhou City was students under 20 years of age. The outbreak was mainly in schools.