Covid “passports” which prove patients are coronavirus -free are being developed to allow Brits back into pubs, offices and schools.
Firms have been told to begin “exploratory work” on the so-called “Freedom” passes, according to reports.
It could come in the shape of a phone app that offers a scannable QR code that will prove they do not have the bug.
A source said the plans were at an early stage.
A government insider said: “It is about looking at ways we could use this in the future. It is looking at whether it would be possible.
“There are no plans to introduce immunity passports.”
Ministers previously ruled out introducing passports for those who have had a vaccine.
It comes as more parts of England look set to be shoved into Tier Four as cases of coronavirus surge.
Several other parts of the country now appear to be at risk of the measures, with Bolton, Lincoln, Stoke-on-Trent, and Rushmoor, on the border of Surrey, all spiking.
It is unclear if these areas will be forced into tougher restrictions before Christmas but a review of where is expected before the year’s end.
According to Public Health England data, Boston and Lincoln, in Lincolnshire, each has around 400 cases per 100,000 people.
Stoke-on-Trent and East Staffordshire, which each have more than 300 cases per 100,000, and Rushmoor, has 335 cases per 100,000.
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