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目的了解2009-2014年上海市金山区流行性感冒流行特征,为流感防治提供科学依据。方法对辖区内开展的流感样病例(简称ILI病例)监测情况和病原学检测结果进行流行病学分析。结果 2009-2014年金山区ILI占门诊就诊人数百分比(ILI%)逐年下降,金山区各周ILI%在1.74%-27.38%之间,平均为3.92%。ILI%高峰多出现在每年30周左右。15岁以下儿童少年ILI病例数构成比明显高于其他年龄人群。ILI病例采样3 620份,阳性1 149份,阳性率为31.47%,各年流行毒株不同。结论金山区流感监测结果与上海市其他区县监测结果基本一致,流行季节为夏秋季,发病以15岁以下儿童青年为主,病原学显示,每年流行毒株不断变化,提示流感防控应有针对性进行。
Objective To understand the epidemic characteristics of influenza in Jinshan District of Shanghai from 2009 to 2014 and provide a scientific basis for the prevention and treatment of influenza. Methods Epidemiological analysis was conducted on the surveillance of flu-like cases (ILI cases for short) and the results of pathogenic tests carried out within the jurisdiction. Results The percentage of ILI outpatient clinics in Jinshan district declined from 2009 to 2014, and ILI% in Jinshan district varied from 1.74% to 27.38% in each week, with an average of 3.92%. Most ILI% peaks occur around 30 weeks a year. The number of ILI cases among children under 15 years of age is significantly higher than that of other age groups. 3 620 ILI samples were collected and 1 149 were positive, with a positive rate of 31.47%. There were different prevalence of strains in each year. Conclusion The monitoring results of Jinshan District are consistent with the monitoring results of other districts and counties in Shanghai. The epidemic season is summer and autumn, and the incidence is mainly young children under 15 years of age. The etiology shows that the epidemic strains are changing constantly each year, suggesting that influenza prevention and control should have Targeted.