如果第二種機製確實是一個問題,那些接受了疫苗後又感染的人應該是症狀加重;但事實是,那些接受了疫苗後又感染的人多數是表現無症狀或輕症。
如果第二種機製確實是一個問題,那些接受了疫苗後又感染的人應該是症狀加重;但事實是,那些接受了疫苗後又感染的人多數是表現無症狀或輕症。
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