Objective To study the immunogenicity of a DNA vaccine expressing the codon optimized HA gene from an H5N1 avian flu viral isolate, A/Viet Nam1203/04 (H5-VN).
目的构建H5N1亚型禽流感病毒株密码子优化的血凝素（HA）DNA疫苗并研究其免疫原性。
Objective To study the immunogenicity of a DNA vaccine expressing the codon optimized HA gene from an H5N1 avian flu viral isolate, A/Viet Nam1203/04 (H5-VN).
目的构建H5N1亚型禽流感病毒株密码子优化的血凝素（HA）DNA疫苗并研究其免疫原性。
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