How Worried Should We Be About The New U.K. Coronavirus Variant?

The image depicts the coronavirus binding to a human cell. The variant identified in the United Kingdom has a mutation known to increase how tightly the virus binds to human cells.

Mathematical modeling suggests that the mutations in this variant make the virus more transmissible. What does that mean for preventive measures — and the new vaccines?

(Image credit: Kateryna Kon/Science Photo Library via Getty Images)

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