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目的掌握肇庆市流行性感冒(流感)情况,为全市流感监测工作的改进提供依据。方法收集2013-2014年全市流感监测医院流感样病例(ILI)监测资料、流感病原学检测结果以及暴发疫情信息,进行描述性分析。结果 2013-2014年全市共报告流感样病例68380例,ILI%为1.35%;各年龄组均有流感样病例报告,其中0~岁年龄组病例最多;各诊室均有流感样病例报告,其中发热门诊病例最多,ILI%达到5.77%。共采集检测流感样病例标本2097份,阳性466份,阳性率为22.22%;阳性样品中,B型179份(占38.41%)、新甲H1型154份(占33.05%)、A(H3)型133份(占28.54%);国家级监测医院ILI%与病例样品阳性率变化趋势基本一致,两者间的Pearson相关系数为0.329(P<0.001)。流感暴发疫情发生集中在学校,暴发报告时间集中在冬春季,病原以B型和A(H3)型流感病毒为主。结论肇庆市国家级和市级监测医院流感样病例监测情况良好,需注重各年龄层的采样比例,进一步提高监测的敏感性。
Objective To investigate the prevalence of influenza (influenza) in Zhaoqing and provide evidence for the improvement of flu surveillance in the city. Methods The data of influenza ILI surveillance, influenza pathogen detection and outbreak information from 2013 to 2014 in the city were collected for descriptive analysis. Results A total of 68380 influenza-like illness cases were reported in the city from 2013 to 2014, with an ILI% of 1.35%. Influenza-like cases were reported in all age groups, of which 0 to the age group had the most cases. Influenza-like cases were reported in all the clinics with fever Outpatient cases the most, ILI% reached 5.77%. A total of 2097 samples of influenza-like illness were collected, 466 were positive, the positive rate was 22.22%. Among positive samples, 179 (38.41%) were B, 154 (33.05% Type 133 (accounting for 28.54%). The trend of positive rate of ILI% in the national surveillance hospital was basically the same as that of the case-control sample. The Pearson correlation coefficient was 0.329 (P <0.001). Influenza outbreaks were concentrated in schools, the outbreak of the report focused on winter and spring, the pathogen to type B and A (H3) type influenza virus. Conclusion The monitoring of flu-like cases in the national and municipal monitoring hospitals in Zhaoqing City is in good condition. The sample proportion of all ages should be paid attention to further improve the sensitivity of monitoring.