弱毒株 [微] low virulent strain ; attenuated virus strain ; mild strain
自然弱毒株 QHO
猪瘟兔化弱毒株 HCLV
弱毒株交叉保护 MSCP ; Mild Strain Cross Protection
弱毒株的交叉保护 Mild Strain Cross Protection ; MSCP
株脆弱类杆菌 Bacteroides fragilis
弱毒菌株 less-virulent strain ; attenuated strain
致弱毒株 attenuated strain
弱毒株系交叉保护 Mild strain cross protection
浸根法可适用于弱毒株的大量接种。
The root soak was a method to mass inoculation of mild strains.
对鸭肝炎鸡胚化弱毒株MY接种4日龄雏鸭后的组织变化进行了动态观察比较研究。
The dynamic changes of tissue structure in 4 days old ducklings which were infected with chicken embryo attenuated strain MY of duck hepatitis virus were observed.
气管IEL数目的变化：PRRS弱毒株鼻腔免疫组IEL数量比对照组和肌肉免疫组呈极显著增加（P<0.01），PRRS弱毒株肌肉注射免疫组IEL数量与对照组无显著变化。
The results showed that the numbers of IEL in tracheas was increased significantly (P<0.01) with PRRS attenuated strain immunization by nasal route contrast to muscle injection and control group;
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