何谓基因缺失活疫苗(gene deleted live vaccine),基因缺失活疫苗有那些优点和缺点 是指应用基因操作技术,将病原微生物中与致病性有关的毒力基因序列除去或失 活,使之称为无毒株或...
双语例句
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The invention also discloses the application of the genedeleted bacterial strain in preparing the Bordetella bronchiseptica genedeletedvaccine (attenuated live vaccine).