Two nanoparticle-based vaccines close to obtaining approval by the US Food and Drug Administration could represent a giant step in the fight against the COVID-19 pandemic.

中文翻译：

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纳米医学和COVID-19疫苗

两种即将获得美国食品和药物管理局批准的基于纳米颗粒的疫苗可能代表了对抗COVID-19大流行的巨大一步。