难说，WHO曾警告，曾检测新冠阳性的未必免疫（保护性抗体)，跟年龄，体质，感染轻重等都有关。

来源: pickshell 于 2021-08-14 06:54:26 [旧帖] [给我悄悄话] 本文已被阅读：次

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