Video: Vallance: Modified Covid vaccine may be needed every year

Video: 21 million reasons to be hopeful: Huge number of Covid-19 vaccines are now in the UK… and there are enough doses to hit the target of injecting over-70s, health staff and care home residents by mid-February 

A modified version of the coronavirus vaccine may be needed to prevent mutated versions of Covid-19 spreading in the coming years, Patrick Vallance has said. But he added that it should be relatively easy to do with…

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