肯定是做过对比才说这个结论的吧。多次注射疫苗后，人体的自身免疫力降低，也是医学界认同的说法

来源: 547788 于 2023-01-16 10:25:09 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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