Guinea pigs and calves were inoculated with bovine paratyphus living vaccine prepared from attenuated ?S. dublin? strain (STM8002 550), then challenged with 2 MLD of the virulent ?S. dublin? strain (S8002) and ?S.
英
美
- 用都柏林沙门氏菌弱毒株(STM8002-550)制造的牛副伤寒活菌苗免疫豚鼠和牦犊牛,15d后用2个最小致死量(MLD)的都柏林沙门氏菌原始强毒株(S8002)和病牛沙门氏菌强毒株(C79-88)分别进行攻击。