机构：[1]Beijing Children Hospital' Virology Laboratory Affiliated to Capital Medical University, Beijing 100049, China.职能科室感染科首都医科大学附属北京儿童医院
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摘要：
To study the molecular characterization of CVA9 virus in Tibet. To isolate the enteroviruses from stool specimens of AFP cases and other children in Tibet in 1999-2002, and identify them by neutralization test using the RIVM antiserum; then determine the complete nucleotide sequence of VP1 region of CVA9 viruses, and analyze the results. A total of 10 strains of CVA9 virus were isolated from the stool specimens and identified. The complete nucleotide sequence of VP1 region of these CVA9 viruses were 906nt coding 302 amino acids. To compare with the sequences of the 10 strains of Tibet, the homogeneity of nucleotide sequence were 79.0% - 99.9%; while they were 75.7% - 78.7% compared with Griggs. The phylogenetic tree of CVA9 viruses showed 2 groups, and the isolates from Tibet belong to 1, 2 groups. The deduction is that the 10 strains are proposed 2 different groups, the strains epidemic in 1999 belong to group 2,while strains in 2000 belong to group 1.
语种：
中文
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第一作者：
第一作者机构：[1]Beijing Children Hospital' Virology Laboratory Affiliated to Capital Medical University, Beijing 100049, China.
推荐引用方式(GB/T 7714)：
Zhang X.X,Chen L,Wang H.L,等.[Ananlysis on the molecular characteristics of CVA9 virus in Tibet].[J].Zhonghua shi yan he lin chuang bing du xue za zhi = Zhonghua shiyan he linchuang bingduxue zazhi = Chinese journal of experimental and clinical virology.2011,25(1):42-5.
