attenuated virus 致弱病毒 ; 减毒病毒 ; 减弱病毒 ; 减毒的病毒
live attenuated virus vaccines 减毒活病毒疫苗
attenuated d virus 减毒病毒
attenuated canine distemper virus 减毒犬瘟病毒
attenuated live measles virus 减毒活麻疹病毒
attenuated measles virus vaccine live 减毒活麻疹病毒疫苗
Most will be inactivated virus vaccines made in eggs, some will be killed virus vaccines made in cell cultures and a few will be live attenuated virus vaccines.
多数是在鸡胚中生产的灭活病毒疫苗，一些是在细胞培养基中生产的灭活疫苗，还有几个减活病毒疫苗。
More importantly, this live attenuated virus provided effective protection when it was administered to birds before they had hatched.
更重要的是，这种减毒活病毒结种于未孵化的鸟类后可提供有效的预防。
The effect of mucosal immune of porcine reproductive and respiratory syndrome virus (PRRSV) attenuated and disactived vaccine was investigated by histological method.
应用组织学方法比较观察了猪繁殖与呼吸综合征病毒（PRRSV）弱毒细胞疫苗与灭活疫苗生殖道黏膜免疫的效果。
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