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目的了解甲型H1N1流感暴发疫情的流行特点,探索学校甲型H1N1流感暴发疫情控制措施。方法采用现场流行病学方法 ,对某高校和相关联的某中学甲型H1N1流感暴发病例进行调查,并对部分病例采集咽拭子标本,采用Real-timeRT-PCR检测甲型H1N1流感核酸。结果该起疫情为句容市首起输入的甲型H1N1流感疫情,由某高校波及相邻某中学,疫情持续19d,某高校共发生流感样病例313例,罹患率为41.44‰,7次采集62份现症患者的咽拭子标本,其中25份甲型H1N1流感核酸呈阳性;相邻中学共发生流感样病例40例,罹患率为12.67‰,采集8份现症患者的咽拭子标本,其中6份甲型H1N1流感核酸呈阳性。结论流感样病例的严格隔离是迅速阻断甲型H1N1流感疫情蔓延的关键措施,学校疫情的防控需要重点强化。
Objective To understand the epidemic characteristics of Influenza A (H1N1) outbreaks and explore the control measures for outbreaks of Influenza A (H1N1) in schools. Methods A case of outbreak of Influenza A (H1N1) in a university and related secondary school was investigated by on-the-spot epidemiological method. Throat swab samples were collected in some cases and the nucleic acid of influenza A (H1N1) was detected by Real-time PCR. Results The outbreak was the first imported H1N1 influenza outbreak in Jurong City. Influenced by a certain university in a neighboring middle school, the epidemic lasted for 19 days. A total of 313 flu-like cases were found in a university with an attack rate of 41.44 ‰ and 7 acquisitions Twenty-four throat swab specimens were detected, of which 25 were positive for influenza A (H1N1). A total of 40 flu-like cases were found in adjacent middle schools with an attack rate of 12.67 ‰. Throat swab specimens from 8 patients were collected. , Of which 6 were positive for influenza A (H1N1) nucleic acid. Conclusion Strict isolation of influenza-like cases is a key measure to quickly block the spread of influenza A (H1N1). The prevention and control of school-based epidemics need to be strengthened.