For Scientists Who Study Virus Transmission, 2020 Was A Watershed Year

Researches have learned a lot in 2020 about how the coronavirus spreads through the air.

The emergence of COVID-19 started scientists on a year-long, crash course to learn how this virus might travel through the air and how to stop it. They learned a lot, and quickly.

(Image credit: Francesco Carta fotografo/Getty Images)

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