What scientists know about COVID-19 -- and what they don't PBS News Hour

Premiered March 31, 2020
What scientists know about COVID-19 -- and what they don't

Why scientists need to learn more about how COVID-19 behaves within a human body

About the Program

PBS News Hour

Millions of Americans turn to PBS for the solid, reliable reporting that has made PBS News Hour one of the most trusted news programs in television.

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