+1,僅僅抗生素的出現就救了多少人。解放前,傳染肺結核二、三十歲青壯年就死了,小兒夭折率也高。乙肝疫苗也阻擋了肝炎傳播。
本帖於 2023-09-05 05:53:59 時間, 由普通用戶 Phoenix16 編輯
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