1起发生在某高等专科学校的甲型H1N1流感聚集性疫情分析

Analysis on an Outbreak of a College Aggregated Infection with Influenza A(H1N1)

[目的]了解聚集性疫情的性质,为及时有效采取控制措施提供依据。[方法]对2009年9月发生在扬州市邗江区某专科学校的1起聚集性甲型H1N1流感疫情进行调查。[结果]2009年9月9~14日,该校5 700名学生中累计确诊甲型H1N1流感病例19例,罹患率为0.33%,300名教职工无发病。9月9~16日采集19例病人的咽拭子标本,检测甲型H1N1流感病毒核酸,均为阳性。[结论]这是1起由甲型H1N1流感病毒引起的聚集性疫情。

[Objective]To understand the nature of the outbreak,so as to provide basis for effectively taking control measures.[Methods]An epidemiological survey was conducted on a college aggregated infection with influenza A in Hanjiang district,Yangzhou city,in September 2009.[Results]19 novel H1N1 cases in 5 700 students of the college were confirmed by laboratory tests from Sep.9 to Sep.14.The attack rate was 0.33%,and 300 teaching and administrative staffs were normal.Throat swab specimens of 19 patients were collected from Sep.9 to Sep.16 and detected for H1N1 virus nucleic acid,and the results were all positive.[Conclusion]This outbreak is a mass event caused by H1N1 influenza virus.