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目的探讨社区甲型H1N1流感应急监测在寻找感染来源、发现聚集性疫情以及有效控制疫情方面的作用,为甲型H1N1流感的预防控制提供参考依据。方法制定监测方案,采集监测对象咽拭子用RT-PCR方法 ,检测甲型H1N1流感病毒核酸,采用现场流行病学调查方法 ,对学校甲型H1N1流感聚集性病例的流行特征进行调查。结果应急监测共采集148例监测对象标本,甲型H1N1流感病毒核酸阳性2例,阳性率为1.35%。调查病例时发现广州市首起学校聚集性甲型H1N1流感疫情,5d内发现确诊病例5例,罹患率为12.2%。结论开展社区甲型H1N1流感应急监测,是寻找社区感染来源,及时发现可疑病例,防止疫情扩散蔓延的很好方法 。
Objective To investigate the role of emergency surveillance of influenza A (H1N1) in finding the source of infection, detecting the epidemic of agglomeration and controlling the epidemic effectively and provide a reference for the prevention and control of influenza A (H1N1). Methods A monitoring program was set up. The throat swabs of the subjects were collected to detect the nucleic acid of influenza A (H1N1) virus by RT-PCR. The prevalence of influenza A (H1N1) influenza in the school was investigated by field epidemiological investigation. Results A total of 148 surveillance samples were collected during the emergency monitoring. The positive rate of influenza A (H1N1) virus was 2 cases (1.35%). Investigation of cases found in Guangzhou City, the first school outbreak of the epidemic of Influenza A (H1N1), 5 cases were found within 5 days, the attack rate was 12.2%. Conclusion To carry out emergency surveillance of influenza A (H1N1) in community is a good way to find the source of community infection, find suspicious cases in time and prevent the spread of epidemic.