Theirs had been an increasingly attenuated relationship. 他们的关系日益冷淡。
Both modified live attenuated virus and inactivated virus vaccines have been developed for veterinary use. 现已开发出用于兽医的改性活减毒病毒和病毒灭活疫苗。
Campaigns are using nonadjuvanted inactivated vaccines, adjuvanted inactivated vaccines, and live attenuated vaccines. 在当前的疫苗接种活动中使用的是不含佐剂灭活疫苗、含佐剂灭活疫苗和减毒活疫苗。
Conclusion Hepatitis A vaccine with attenuated Salmonella typhimurium as vector can induce immune response. 结论:以减毒鼠伤寒杆菌为载体的甲肝疫苗构建成功,并可在体内外产生免疫应答。
Different attenuated strains of mumps virus are used for the development of live attenuated mumps vaccines. 不同的减毒流行性腮腺炎病毒株用于制备流行性腮腺炎减毒活疫苗。