The origins of Covid

from More or Less · host BBC Radio 4

To find out where a virus comes from, researchers compare it to other viruses to try to trace its origin. This leads to claims like SARS-CoV-2 is 91 or even 96% similar to other known viruses. But what does that really mean? Tim Harford talks to the virus ecologist Marilyn J Roossinck.

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This episode is 8 minutes long.

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This episode was published on June 19, 2021.

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