recombinant attenuated Salmonella
Recombinant attenuated Salmonella typhimurium
recombinant attenuated Salmonella typhimurium vaccine
recombinant attenuated Salmonella vaccine strain X4550
recombinant bacteria 1020
Attenuated
减毒
衰减
疫苗
弱毒
沙门
弱
致弱
减弱
衰
致
减
甲型
灭活
减弱病毒
顶端渐细的
使稀薄
弱毒疫苗
弱毒株
弱化
减毒活
减毒的
降低毒性的
驯化的
克隆纯化
使弱.
使细
attenuated ConA activated healthy autologous T-cells
Attenuated duck plague virus strain
attenuated equine infectious anemia vaccine
attenuated Escherichia coli
attenuated live coccidial vaccine