The Covid-19 variant which was first detected in the UK's Kent last year is set to become the dominant strain and is going to sweep the world the head of the UK's genetic surveillance programme said. The new variant has 'swept the country' and 'it's going to sweep the world in all probability' Sharon Peacock Director of Covid-19 Genomics UK (Cog-UK) told the BBC. Once we get on top of it or it mutates itself out of being virulent -- causing disease -- then we can stop worrying about it. But I think looking in the future we're going to