Cases of the Omicron variant of Covid-19 in the UK are soon expected to be higher than in some African countries placed on their travel red list, a scientist has warned.
Professor Tim Spector said early data suggests cases of the coronavirus mutation are doubling every two days, putting it on course to overtake some of the 11 countries from where travellers to the UK are now required to quarantine to try to stymie community transmission.
New rules came into force earlier today, requiring all travellers to take a pre-departure test before heading to England. They will not be able to travel if they test positive.
Prof Spector, professor of genetic epidemiology at King's College London, told BBC Breakfast there was "very little point" in