我觉得光是看澳洲的数据,既看不出疫苗的防护有多好,也看不出有多无用。有效的比较需要更多其他因素的数据
我觉得光是看澳洲的数据,既看不出疫苗的防护有多好,也看不出有多无用。有效的比较需要更多其他因素的数据
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