flu 不是感冒，就那几个 strain，每年预测哪两个 strain 会爆发。打完得了症状会轻是对的，但免疫不会很长

来源: STEMkid 于 2025-02-27 07:48:18 [旧帖] [给我悄悄话] 本文已被阅读：次

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