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[目的]对2006~2008年江西省流感病原学监测结果进行分析,进一步了解流感病毒的流行趋势,探索流感流行的规律。[方法]根据全国流感监测方案,采集国家级监测哨点医院流感样病人的鼻咽拭子标本,用MDCK细胞分离流感病毒,用红细胞凝集抑制法(HI)鉴定病毒。[结果]2006~2008年共采集标本4 589份,共分离出流感病毒558株,分离率12.16%,其中H1N1亚型158株,占阳性株的28.32%,H3N2亚型154株,占阳性株的27.60%,B(Victoria系)142株,占阳性株的25.45%,B(Yamagata系)104株,占阳性株的18.64%。[结论]2004~2007年江西省有H1N1亚型、H3N2亚型和B(Victoria系)、B型(Yamagata系)流感病毒流行,2006年B(Victoria系)为流行优势株,2007年H3N2亚型为流行优势株,2008年H 1N1亚型为流行优势株。
[Objective] To analyze the results of influenza etiology monitoring in Jiangxi Province from 2006 to 2008 to further understand the epidemic trend of influenza virus and to explore the regularity of influenza epidemic. [Methods] According to the national influenza surveillance program, nasopharyngeal swab samples of influenza-like patients from national surveillance sentinel hospitals were collected. Influenza virus was isolated from MDCK cells and virus was identified by hemagglutination inhibition (HI). [Results] A total of 4 589 samples were collected from 2006 to 2008, 558 influenza viruses were isolated, the isolation rate was 12.16%, including 158 strains of H1N1 subtype, accounting for 28.32% of the positive strains and 154 strains of H3N2 subtype, accounting for the positive strains 142.6% of B (Victoria), 25.45% of B (Yamagata), accounting for 18.64% of the positive. [Conclusion] Influenza viruses of type H1N1, H3N2 and B (Victoria) and type B (Yamagata) were prevalent in Jiangxi province from 2004 to 2007. In 2006, B (Victoria) was the predominant strain. In 2007 H3N2 Asia Type prevalence strains, 2008 H 1N1 subtype prevalence strains.