三角洲变异体对你意味着什么

30 9 月, 2022

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三角洲变异体对你意味着什么

作者：Carrie Gann

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2021年8月5日 -- 这种新版本的冠状病毒正在以一些大的方式改变COVID大流行的情况。传染病专家William Schaffner博士告诉我们，Delta变体对已接种疫苗和未接种疫苗的人意味着什么，是什么让它的传染性如此之强，以及强制接种疫苗在遏制它方面可能发挥的作用。

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