The event as Mr Johnson summoned ministers for a convention name at lunchtime to debate the disaster.
The Prime Minister is claimed to be particularly involved a few mutated pressure of Covid-19, which is believed to be rising shortly throughout components of the UK, particularly London and the south-east.
There was rising hypothesis on Saturday that the federal government could must beef up restrictions over Christmas.
Ministers are understood to be analyzing whether or not to impose powerful restrictions on journey between the southeast of England, together with London, and the remainder of the nation. Such a transfer would doubtlessly wreck plans of many individuals who have been hoping to benefit from relaxed restrictions over a five-day interval to see family members.
In a press release on Saturday, Prof Whitty mentioned: “As introduced on Monday, the UK has recognized a brand new variant of Covid-19 by way of Public Well being England’s genomic surveillance.
“Because of the fast unfold of the brand new variant, preliminary modelling information and quickly rising incidence charges within the South East, the New and Rising Respiratory Virus Threats Advisory Group (NERVTAG) now contemplate that the brand new pressure can unfold extra shortly.
“We have now alerted the World Well being Organisation and are persevering with to analyse the accessible information to enhance our understanding.
“There isn’t a present proof to counsel the brand new pressure causes the next mortality charge or that it impacts vaccines and coverings though pressing work is underway to substantiate this.
“Given this newest improvement it’s now extra very important than ever that the general public proceed to take motion of their space to scale back transmission.”
The federal government warned an increase in infections is likely to be partly linked to a brand new extra transmissible variant of the virus when it moved London and different swathes of the nation into the best tier of restrictions to curb the unfold of the virus.
Mr Johnson mentioned on Friday he hoped that England wouldn’t want to return into lockdown however well being specialists have warned pressing motion is likely to be wanted.
Britain reported 28,507 new Covid-19 circumstances on Friday and 489 deaths, with the replica “R” quantity estimated to be between 1.1 and 1.2, that means the variety of circumstances is quickly rising.
“This can be a very main concern,” Jeremy Farrar, director of the Wellcome Belief and a member of the Scientific Advisory Group mentioned on Twitter on Saturday morning.
“Failing to behave decisively now, will imply additional struggling. We should hold asking ourselves ‘are we doing sufficient, are we appearing shortly sufficient’.”
Mr Johnson has to date resisted calls to alter the federal government plans to ease restrictions for 5 days over Christmas, permitting three separate households to fulfill indoors.
Sky Information reported that SAGE would meet on Monday to debate how the present three-tiered system of restrictions could possibly be beefed up.
The Telegraph newspaper mentioned it was attainable ministers may announce an emergency toughening of measures on Saturday,