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目的分析昆山市2009年5月某中心小学三(3)班发生1起以上呼吸道感染为主要症状的群体性不明原因发热事件的原因,探讨群体性不明原因发热事件的流行病学危险因素和防控措施。方法收集有上呼吸道感染症状学生的个案调查资料进行流行病学分析。结果 5月8日～16日该班共发生病例21名,罹患率高达45.7%,其中男生10名,女生11名,男女罹患率差异无统计学意义(χ2=0.32,P>0.05)。通过采取有效的防控措施,疫情很快得到控制,患者中未发生严重并发症及死亡病例。结论校园内公共卫生突发事件时有发生,且较为严重。及时报告、处理是避免疫情进一步扩散的关键。
Objective To analyze the causes of one group of unexplained fever with respiratory infection as the main symptom in more than three (3) classes in a central primary school in Kunshan in May 2009, and to explore the epidemiological risk factors of group-specific unexplained fever Control measures. Methods Epidemiological analysis was conducted on case-control data collected from students with symptoms of upper respiratory tract infection. Results From May 8 to May 16, there were 21 cases in this class, with an attack rate as high as 45.7%. There were 10 boys and 11 girls. There was no significant difference in the attack rates between boys and girls (χ2 = 0.32, P> 0.05). By effective prevention and control measures, the outbreak was quickly controlled and no serious complications and deaths occurred in the patients. Conclusion Public health emergencies on campus have occurred frequently, and more serious. Timely reporting and handling are the keys to avoiding further spread of the outbreak.