那是文章的題目。文中詳細地分析了各種情況,其中提到沒打疫苗,直接感染O變的,抗體水平相對低,但對其它變種也有保護作用
本帖於 2022-05-15 04:18:24 時間, 由普通用戶 fuz 編輯
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