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[目的]分析甲型H1N1流感(甲流)在我国出现社区局部暴发前病例的流行病学特征,为今后制定口岸防控对策提供依据。[方法]对2009年5月10日至6月10日公开发布的我国甲流病例资料进行描述性分析。[结果]甲流确诊病例111例,年龄分布及临床表现与其他国家相似;96例输入性病例中海外中国籍人员和美籍华人占63.1%,70.2%出发地为美国,入境口岸有北京等11个;7例发病者主动申报病情,20例在入境检疫现场被动发现,非入境检疫现场的输入性病例中29.2%、39.6%的发病时间分别为入境后第2、3天,80.0%二代病例由于社交活动被传染。[结论]依据《国际卫生条例(2005)》和我国《国境卫生检疫法》,国境卫生检疫可有效履行防控职责。
[Objective] To analyze the epidemiological characteristics of H1N1 Influenza A (H1N1) cases in China before the outbreak of community outbreaks, and provide the basis for the formulation of prevention and control measures at ports. [Methods] A descriptive analysis of the data of A-cases in China released from May 10 to June 10, 2009 was made. [Results] A total of 111 confirmed cases were detected in A case, with similar age distribution and clinical manifestations as other countries. Of the 96 imported cases, 63.1% were overseas Chinese and Chinese Americans, 70.2% were from the United States and Beijing, 11 cases. Seven cases were reported to be active and 20 cases were found passively at the scene of entry quarantine. The incidence of non-entry quarantine cases was 29.2% and the incidence of 39.6% was 2 and 3 days after entry, 80.0% Generation cases are contagious due to social activities. [Conclusion] According to the “International Health Regulations (2005)” and the “Frontier Health and Quarantine Law of the People’s Republic of China”, frontier health quarantine can effectively perform its prevention and control duties.