There is a 'high chance' that the next variant of Covid-19 could be the worst one we've seen, warns the UK Government's chief medical advisor Sir Chris Witty.
Speaking at a virtual meeting of local Government officials on Wednesday, Mr Witty warned that while the UK has one of the world leading vaccination roll outs and booster programmes, Britain and the rest of the world will remain vulnerable to a mutation.
His dire warning comes as it is thought that one in 11 Scots have Covid.
