❐ Why it matters that the coronavirus is changing – and what this means for vaccine effectiveness
2020 Dec 22
The French government will not accept any passengers arriving from the U.K. amid fears over the new mutant coronavirus strain. Steve Parsons/PA Images via Getty Images
A new strain of the SARS-CoV-2 virus that causes COVID-19 appears to be spreading fast in the UK. This probably isn't a big problem, but the data isn't in yet.