It is felt the killed vaccine either neutralize the remaining maternal antibody or just more easily starts the development of immunity.
灭活苗可以中和剩余的母源抗体,或更易于激活机体免疫力的产生。
It is felt the killed vaccine either neutralize the remaining maternal antibody or just more easily starts the development of immunity.
灭活苗可以中和剩余的母源抗体,或更易于激活机体免疫力的产生。
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