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目的分析某中学263例甲型流行性感冒暴发病例的流行病学特征,为今后控制类似事件提供参考和借鉴。方法对263例流感病例进行流行病学调查和病原学检验。结果该校共确诊263例流感病例,罹患率12.88%,其中男136例,女127例,男女比例为1.07∶1;发病年龄在10～24岁之间,最大年龄24岁(教师),最小年龄10岁,11～15岁占98.86%;经RT-PCR试验,3份样本检出流感病毒H1型血凝素抗原;首发病例3 d后出现病例增多,报告县疾控中心采取控制措施,12 d后无新发病例。结论此次疫情系甲型流行性感冒暴发引起。应急处理措施及时得当。
Objective To analyze the epidemiological characteristics of 263 cases of influenza A outbreak in a middle school and provide references for the control of similar events in the future. Methods 263 cases of influenza were investigated by epidemiology and etiology. Results A total of 263 cases of influenza were confirmed in this school, with an attack rate of 12.88%, including 136 males and 127 females, with a ratio of 1.07:1. The age of onset was between 10 and 24 years old, the maximum age was 24 years old (teacher) Age 10 years old, 11 to 15 years old accounted for 98.86%; by RT-PCR test, three samples detected influenza H1 hemagglutinin antigen; the first case after 3 d cases increased, the report CDC take control measures, No new cases after 12 days. Conclusion The outbreak was caused by influenza A outbreak. Emergency treatment promptly appropriate.