摘要对3499例甲型H1N1流行性感冒病例进行流行病学调查和咽拭子采样,用实时荧光定量聚合酶链反应方法检测患者甲型H1N1流行性感冒病毒核酸,分析患者临床特点和排毒时间.结果 显示,有13例(0.37%)为隐性感染,症状中出现最多见为发热(86.77%),平均咽拭子转阴时间为发病后6 d,未发现与咽拭子转阴时间的临床相关因素.

abstractsA total of 3499 cases of influenza A (H1N1) were included in this study for analysis.Epidemiological and clinical data of these cases were input into EpiData software and analyzed by SPSS software. Throat swabs were collected from the cases and detected for nucleic acid of influenza A ( H1N1 )virus using real-time polymerase chain reaction (RT-PCR) with fluorescence quantitative method, and time of viral excretion and clinical features of the cases were analyzed. Results showed that 0. 37% of the cases were in-apparent and asymptomatic and the most common symptom of the cases was fever (86. 77% ).Throat swabs converted to negative on the sixth day of onset in average, and no factors related to the time of conversion was found with logistic regression analysis.