The rapid spread of the UK variant, B.1.1.7,  has scientists worried about a terrible new wave of COVID-19 cases,

A new South Africa variant of SARS-CoV-2 is prompting concerns about increased transmission and how effective current vaccines will be against it,

The SARS-CoV-2 mutation now rapidly spreading across England’s South East is potentially up to 70% more infectious than its predecessor—but not necessarily more dangerous, according to a new 

Could a novel strain of SARS-CoV-2 identified this month be linked to an accelerating spread in the country’s southeast? 

It’s perfectly normal for viruses to mutate—but most of these changes are about as consequential as typos on a page (though we hate to see those!).