Ptt 大爆卦 | COVID airborne - 前往 https://www.whitehouse.gov/ostp/news-updates/2022/03/23/lets-clear-the-air-on-covid/

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Let's Clear The Air On COVID | The White House

The most common way COVID-19 is transmitted from one person to another is through tiny airborne particles of the virus hanging in indoor air ...

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