疫苗肯定是有效的,隻是Delta病毒突破疫苗防線的能力更強了。
所有跟帖:
• 主要是因為Delta變異傳播迅速 -TBz- ♂ (222 bytes) () 06/29/2021 postreply 21:24:12
• 主要是因為Delta變異傳播迅速 -TBz- ♂ (222 bytes) () 06/29/2021 postreply 21:24:12
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