广西狂犬病毒野毒株的基因和抗原分析(英文)

来源 :广西预防医学 | 被引量 : 0次 | 上传用户:bppczj
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Analyse the genetic and antigenic variant of rabies virus in Guangxi with epidemiological method, monoclonal antibodies reaction pattern and molecular biological technique. Rabies incidence has increase in recent three years in Guangxi, especially in mountainous areas. Investigation into the human rabies found that there are about 20% vaccinated defeat cases.On the basis of their reactivity to monoclonal antibodies against the viral nucleocapsid protein(mAb-N),4 street strains isolated from different areas where enzootic rabies is shown had different reaction patterns compared with Chinese vaccine strain(3aG). The nucleotide and amino acid sequence of street strain(GX89_1) G and N gene were compared with 3aG, the overall nucleotide homology of GX89_1 with 3aG was 84.5% and amino acid homology of GX89_1 with 3aG was 89.5% in G gene.The overall nucleotide homology of GX89_1 with 3aG was 86% in N gene and they were not in the same group.There are several amino acid replacement in AA 243_268 of G protein that can affect the antigenicity of rabies virus.The findings suggest that there are different street strains of rabies virus in Guangxi.
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