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时事大家谈

时事大家谈

Voice of America
Saturday, September 25, 2021 10:07:13 PM UTC

有研究显示,新冠疫苗的保护作用随着时间的推移有减弱的迹象。为了应对德尔塔变体的扩散,防止疫情升温,美国启动了加强针计划。那么,第三针是必须打,还是防患未然?哪些人什么时候需要打?疫苗供应悬殊,除了是道义问题之外,又会如何影响全球抗疫?《时事大家谈》邀请纽约百康医疗集团内科医生,非盈利机构和谐社区医疗大联盟主席陈治年来分析和解答。

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