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[目的]调查1起甲型H1N1流感暴发的原因,为控制类似疫情提供经验。[方法]2009年7月对济南市1起输入性甲型H1N1病例进行个案调查,用描述性流行病学调查方法进行分析。[结果]本起疫情共报告10例病例,其中境外感染8例,二代病例2例。9例出现发热,最高体温39.7℃,8例体温≥38.0℃,占88.9%。[结论]此起疫情为境外输入甲型H1N1流感暴发疫情。暴发原因不排除境外的同源暴露感染,二代病例为未采取防护的密切接触感染发病。此阶段加强入境人员的健康教育,强化对病例和密接的管理,是控制疫情的关键措施。
[Objective] To investigate the causes of H1N1 flu outbreak and provide experience for controlling similar outbreaks. [Method] A case-control study of one imported H1N1 case in Jinan City was conducted in July 2009 and analyzed by descriptive epidemiological survey. [Results] A total of 10 cases were reported in this outbreak, including 8 cases of overseas infection and 2 cases of the second generation. 9 cases of fever, the highest temperature of 39.7 ℃, 8 cases of body temperature ≥ 38.0 ℃, accounting for 88.9%. [Conclusion] This outbreak was imported outbreak of Influenza A (H1N1) outbreak. Outbreak causes do not rule out homologous exposure outside the country, the second generation of cases did not take the protection of close contact with the incidence of infection. Strengthening the health education of entry personnel and strengthening the management of cases and close contacts at this stage are the key measures to control the epidemic.