Objective: Study meningoencephalitis virus isolated from the Coxsackie B5 virus(CVB5 virus) VP1 gene characteristics of Zhejiang Province in 2008 and compare with other countries CVB5 prototype isolates, and to explore the relationship of variation of the Virus VP1 areas and epidemic viral meningoencephalitis
Methods: Hep-2 and RD cells in cerebrospinal fluid and stool specimens for virus isolation, positive isolates combination with intestinal type of serum. On the separation of virus extracted RNA, and then RT-PCR amplified VP, gene CVB5 virus fragments, and purification of sequencing products, using DNAMAN and Bioedit analytical processing software.
Results: The VP1 gene of CVB5 isolated from Zhejiang province meningoencephalitis viral in 2008 was 735bp. There were no missing and insertion of nucleotide . Strains isolated from ZJ/12/02 with the nucleotide and amino acid sequence of the highest phylogenetic tree showed that they were not the same branch.
Conclusion: The mutation caused by viral meningoencephalitis virus CVB5 Zhejiang province in 2008 was smaller. Viral meningoencephalitis distributed in some areas in the province had no significant prevalence.
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