新冠疫苗都不一定有百分之90減少重症的效果
所有跟帖:
• 其實如果能有50%就是偉大勝利,流感疫苗又不會損失什麽。 -va168- ♀ (0 bytes) () 05/25/2022 postreply 19:47:49
• 其實如果能有50%就是偉大勝利,流感疫苗又不會損失什麽。 -va168- ♀ (0 bytes) () 05/25/2022 postreply 19:47:49
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