Should we worry about the emergence of a new variant of SARS-CoV-2, the virus which causes Covid-19? News of the new variant – which, it seems, might transmit more easily than previous versions – was the big surprise of Matt Hancock’s statement to the Commons this afternoon. The other big announcement – that London and parts of Essex and Hertfordshire will be going into Tier 3 – was a foregone conclusion.
As I wrote here in May, the SARS-CoV-2 virus has already mutated once into a form that might be more transmissible. This could possibly explain why Europe and North America have found it harder to contain the virus than have Asian countries. Were we fighting a slightly different disease to the one which emerged in Wuhan in January?
At this evening’s press briefing, Chris Whitty, the Chief Medical Officer, played down fears about the new mutation.
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