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目的分析黑龙江省2012-2016年度流感监测数据,为今后流感防控工作提供参考。方法收集全省20家国家级哨点医院的流感样病例(ILI)数据进行病原学监测。结果哨点医院共报告ILI 168 972例,门急诊就诊病例11115 442例,ILI占门急诊就诊病例比例为1.52%,4个监测年度ILI%差异有统计学意义(χ~2=1 611.74,P<0.01);采集ILI标本50 189例,经核酸检测或病毒分离共检测出阳性标本4 753例,阳性率为9.47%;流感样病例集中在15岁以下的儿童;2012-2013年度以H3N2亚型为主,2013-2014年新甲型H1为优势株,2014-2016两个监测年度以H3N2和B型交替流行,与其他省份监测结果相同;阳性结果时间分布与ILI%趋势图基本一致。结论黑龙江省流感高峰符合北方省份流行特征,应加强对B型流感的监测,并积极推广流感疫苗的接种工作。
Objective To analyze the data of influenza surveillance in Heilongjiang Province from 2012 to 2016 and provide references for future prevention and control of influenza. Methods Influenza-like cases (ILI) data from 20 national sentinel hospitals in the province were collected for etiological surveillance. Results Sentinel Hospital reported a total of 972 ILI cases, 11115 442 cases of outpatient and emergency department visits, and 1.52% of ILI cases accounted for outpatient and emergency department visits. The ILI% of 4 monitoring years was significantly different (χ ~ 2 = 1 611.74, P <0.01). A total of 50 189 ILI samples were collected. A total of 4 753 positive samples were detected by nucleic acid detection or virus isolation, with a positive rate of 9.47%. Influenza-like cases were concentrated in children under 15 years old. In 2012-2013, Type. The new H1N1 strain was the predominant strain in 2013-2014. The two monitoring years 2014-2016 were alternately epidemic with H3N2 and B type strains, which was the same as the monitoring results in other provinces. The time distribution of positive results was basically in line with the trend of ILI%. Conclusion The peak of influenza in Heilongjiang Province is in line with the epidemic characteristics of northern provinces. The surveillance of influenza B should be strengthened and vaccination of influenza vaccine should be actively promoted.