营口市2003～2007年小年龄组流行性感冒病原学监测

SURVEILLANCE OF AETIOLOGY OF INFLUENZA AMONG YOUNG CHILDREN IN YINGKOU FROM 2003 TO 2007

[目的]对营口市2003～2007小龄组流感监测结果进行分析。[方法]流感病毒分离采用细胞分离;流感病毒亚型鉴定采用红细胞凝集抑制试验。[结果]2003～2007年4月共采集咽拭标本404份,分离到H1N1、H3N2型和B型流感病毒20株,平均分离率为4.95%,优势流行株为H1N1和H3N2亚型毒株,占总分离数的70%。在性别方面,病例样品阳性分离率男孩(6.47%)高于女孩(3.97%),但差异无统计学意义(P﹥0.05)。[结论]2003～2007年营口市流感疫情相对平静,流感病原学监测结果的分析对于了解营口流感流行特点具有重要意义。

[Objective] To analyze the monitoring results of influenza among young children in Yingkou from 2003 to 2007. [ Methods] Influenza viruses were isolated by MDCK cell, and the subtypes of influenza viruses were identified by hemagglutination inhibition test. [ Results] Totally 404 swab specimens were collected from 2003 to April 2007. 20 strains of influenza viruses isolated belonged to subtype HINI, H3N2 and subtype B. Average isolating rate was 4.95%. The dominant strains were H1N1 and H3N2, accounted for 70% of the total separation number. In the aspect of gender, the positive isolated rate for boys （6.47%） was significandy higher than that for girls （3.97%）, while there was no significantly difference （P〉 0.05 ）. [Conclusion] The prevalence of epidemic influenza was relative stability in Yingkou from 2003 to 2007. The monitoring results of the aetiology of influenza have great significance for better understanding the characteristics of influenza.