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基因缺失活疫苗
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基因缺失活疫苗
Encyclopedia
理学
基因工程
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gene deleted live vaccine
基因缺失活疫苗
用基因工程技术将病原体中与毒力相关的基因删除或突变,使之毒力减弱甚至消失,但仍然保留其抗原性及一定的复制和感染能力,从而能够自然感染宿主细胞并产生免疫反应的疫苗。
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first responder
first-return mapping
first ring isomorphism theorem
first-run distribution mechanism
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first separation principle
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