Some scientists worry coronavirus vaccines might not work as well against the new mutation

Some scientists worry that coronavirus vaccines will not be as effective against the UK mutation (version B.1.1.7) that caused quite a stir over the weekend. The UK coronavirus mutation has been spreading rapidly in Great Britain and might be more infectious than its predecessors -- but there's no evidence it can cause more severe COVID-19 or evade vaccines. Some experts think the vaccines might be less effective against this strain, saying that more tests are required before we know for certain...