Airborne coronavirus transmission raises new questions and worries

Half a year into the pandemic, it’s well-accepted that coronavirus can be spread when an infected person expels respiratory droplets by coughing or sneezing.But can the virus be transmitted in microscopically small droplets that are released into the air by talking or just breathing? And if so, could you contract the virus from across a room, or after the infected person leaves the room?As with so many aspects of the coronavirus, the answer is unclear, debated, and under study.Still, evidence that these invisible “aerosols” can spread infection indoors more stealthily than thought prompted 239…

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