England Health Secretary said there were no current plans to roll out vaccine passports for those who had received both jabs.
Pressed on the matter by broadcasters, Matt Hancock said: “At the moment we have no plans for vaccine passports – and, anyway, going on holiday is illegal in this lockdown.
“Of course, we’re constantly working with other countries and we keep these sorts of things under review, but for now there are still 31,670 people in hospital with Covid right now.
“It’s imperative, that even with the good news on the vaccine and even with cases starting to fall, it’s imperative that everybody follows the rules and stays at home unless you absolutely have to leave.”
He added: “I know there is good news out there but we still have very serious problems that we’ve got to get through.”
Government data up to February 4 shows of the 11,477,040 jabs given in the UK so far, 10,971,047 were first doses – a rise of 480,560 on the previous day’s figures.
Some 505,993 were second doses, an increase of 4,036 on figures released the previous day.
The seven-day rolling average of first doses given in the UK is now 439,980.
Based on the latest figures, an average of 402,895 first doses of vaccine would be needed each day in order to meet the Government’s target of 15 million first doses by February 15.