News of the new SARS-CoV-2 variant has emerged and taken us back to a period of scientific uncertainty.
Here are a few things you should know about the variants from the UK, South Africa and Brazil.
Veuer’s Johana Restrepo has more.
ABC's Dr. Jennifer Ashton on COVID-19 variant, vaccine rollout, Vitamin D treatment
ABC News chief medical correspondent Dr. Jennifer Ashton answers questions about the latest COVID-19 headlines, including the..
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