The infant receives three injections of pertussis vaccine at one-month intervals . 婴儿以一个月为间隔,接受三次百日咳疫苗的注射。
The discovery that an animal can be immunized with only the coat of a virus opens new possibilities in vaccine research . 只用病毒的覆膜就可以使动物免疫的这一发现为疫苗的研究开辟了新途径。
Even if the vaccine 4 , 000 dogs also all killed 连打过疫苗的4千只狗也都杀死了。
When is the best time to get a flu vaccination 什麽是注射流感疫苗的最佳时候?
Study on subunit b whole cell oral o139 cholera vaccine 全菌体口服疫苗的研究