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21 小时
疫苗界的“老登”——咋还不被淘汰?
疫苗界的“老登”——咋还不被淘汰?PPSV23众所周知,23价肺炎球菌多糖疫苗(PPSV23)由于诱导的免疫反应比较弱而且不能产生免疫记忆,时常被人诟病。于是很多朋友就来问我:这么老的一款疫苗怎么还没被淘汰?事实上:因为这款疫苗并不差,直到2025年 ...
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