There have been many mutations in the virus since it emerged in 2019.
Here isa look at all the key questions behind the UK's latest strain of Covid-19.
There have been many mutations in the virus since it emerged in 2019.
Here isa look at all the key questions behind the UK's latest strain of Covid-19.
The CDC says Massachusetts is one of six states that are specifically testing coronavirus samples for the highly contagious variant..
More ambulance workers than ever are treating COVID-19 patients in England as a new variant of the virus spreads rapidly