📄 Mask is the possible key for self-isolation in COVID-19 pandemic.

Ma's research shows N95 masks, medical masks, even homemade masks could block at least 90% of the virus in aerosols(1) . This study puts the debate on whether the public wear masks back on the table. Recently Science interviewed Dr. Gao, director-general of Chinese Center for Disease Control and Prevention (CDC). This article is protected by copyright.

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