You're reading: NPR: For scientists who study virus transmission, 2020 was a watershed year

When Linsey Marr looks back at the beginning of 2020, what strikes her is how few people in the world really understood how viruses can travel through the air. “In the past year, we’ve come farther in understanding airborne transmission, or at least kind of beyond just the few experts who study it, than we have in decades,” says Marr.

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