安徽某监狱一起甲型H1N1流感暴发疫情流行病学调查

目的明确甲型H1N1流感病例的来源,探索病例间传播方式,总结防控工作的经验和教训。方法采集流感样病例的咽拭子,采用RT-PCR、Real-timePCR法进行核酸检测。采用现场流行病学调查方法,开展病例诊断、疫情调查和控制工作。结果此起疫情累计发生流感样病例326人,罹患率为17.9%,实验室确诊甲型H1N1病例31人,所有病例经治疗后均痊愈。结论此起疫情为监狱甲型H1N1流感暴发,经采取流行病学调查、停工、隔离治疗、预防服药、个人防护、通风消毒、健康教育等综合措施,疫情得到有效控制。

Epidemiological investigation of influenza A (H1N1) outbreak in a prison of Anhui Province

Objective To identify the source of influenza A（H1N1） infections,determine the transmission pattern among patients,and summarize the experience derived from the prevention and control work. Methods Throat swab of influenza-like illness （ILI） cases was collected and DNA of flu virus was determined by RT-PCR and Real-time PCR test. Epidemiological investigation,clinical examination,serological tests,RT-PCR and Real-time PCR test for influenza A （H1N1） cases were used to analyze and diagnose,and proposed control measures. Case diagnosis,epidemiological investigation and control measures were performed based on the results of on-site epidemiological investigation. Results 326 ILI cases were screened and 31 cases were confirmed with influenza A （H1N1）,and the attack rate of ILI case was 17.9%. All patiens were cured. Conclusions Outbreak of influenza A （H1N1） in a prison was confirmed. Using epidemiological investigation,suspended work,isolation and treatment,preventive medicine,personal protection,ventilation,disinfection and health education,the epidemic was effectively controlled.