2009年泉州市流感监测结果分析

Influenza surveillance in Quanzhou in 2009

目的了解泉州市2009年流感活动情况及其型别特征。结论通过流行病学和病原学监测,对泉州市流感流行情况进行分析。结果 2009年全市流感样病例占就诊人数的0.26%～2.34%;全年采集监测标本1392份,经RT-PCR法检测样本阳性率为22.34%;经MDCK细胞分离流感毒株134株,其中季节性H3N2和HINl型各占60.45%和11.19%,甲型H1N1流感占21.64%,B型占6.70%。结论 2009年泉州市流感春夏季以季节性H3N2亚型流感为优势毒株,秋冬季以甲型H1N1流感为流行株,需加强泉州市流感监测和流感病毒抗原变异研究。

Objective To analyze the prevalent characteristics of influenza in Quanzhou city. Methods Epidemiology and etiology surveillance were applied to analyze the epidemic of influenza in Quanzhou.MDCK cell was used for the cultivation of influenza virus and the subtype identification..Results The percentage of influenza-like illness from the outpatients was 0.26%-2.34%.The positive rate of influenza virus infection was 22.34%（311/1392）by RT-PCR.134 virus strains were isolated.The percentage of seasonal H3N2 and H1N1 was 60.45% and 11.19%,respectively.The percentage of influenza A and B was 21.64% and 6.7%,respectively..Conclusions H3N2 was the major subtype circulating in the Quanzhou city between spring and summer in 2009.In contrast,influenza A （H1N1） was the major strain found in autumn and winter. Strengthening of the flu surveillance and research on the antigen variation of influenza viruses are required.