We’re learning constantly about SARS-CoV-2: what it does to the human body, how it spreads, and why it seems to transmit more readily in certain situations compared with others. Knowing how long the virus lives under different conditions is crucial for understanding the drivers of transmission and how to stop it. Jason Gale spoke with a scientist looking into some of these critical questions. And his answers don’t bode well for winter in the Northern Hemisphere.

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