People aged 70 or older in England who have not yet had their coronavirus vaccine but would like to are being asked to contact the NHS.
A national booking system can be accessed online or people can call 119 free of change between 7am and 11pm.
At a Downing Street news briefing, deputy chief medical officer Prof Jonathan Van-Tam urged people to get the vaccine "without delay".
"Protect yourself against the clear and present danger," he said.
He said the vaccines worked very well against the "immediate threat" of the Kent variant of coronavirus circulating in the UK.
Source: BBC News, 8 February 2021