【摘要】 目的分析某福利院发生的一起流感暴发疫情的流行特征,为预防与控制此类集体单位流感暴发提供依据。方法依据流感样病例定义,开展病例搜索与流行病学调查,采用RT-PCR方法检测流感病毒核酸,运用Excel 2010和SPSS 18.0整理数据与统计分析。结果此次流感暴发疫情的罹患率为2.69%（13/483）,有病例发生的楼层罹患率差异具有统计学意义（P<0.05）,采集的10例病例咽拭子标本中检出5份流感病毒核酸阳性、且均为H₃N₂。结论此次疫情是武汉市首次在福利院报告的流感暴发疫情,经证实为H₃N₂亚型流感病毒感染所致,传染源可能为外来的流感样病例,呼吸道传播和密切接触传播均为可能的院内传播方式。更多还原

【Abstract】 Objective To analysis the epidemiological characters of an influenza outbreak in a welfare home,and to provide effective and scientific evidence of influenza outbreak prevention and control in such units. Methods Case research and epidemiological investigation were carried out according to the definition of influenza like illness. RT-PCR was used to detect influenza virus nucleic acid. Excel 2010 and SPSS18. 0 were used to take data collection and analysis. Results The attack rate was 2. 69%（13/483） in the influenza outbreak. There was a statistically significant difference in the attack rate between the floor occurred cases and other floors（P < 0. 05）. Five throat swabs of total ten samples were positive for influenza virus A/H₃N₂. Conclusion The outbreak of influenza is the first reported in a welfare home in Wuhan,and it is proved to be caused by A/H₃N₂. The source of infection may be the imported influenza like illness,and the possible transmission are respiratory tract and close contact.更多还原