Half a million people in England are now being invited to book their Covid-19 jab as the rollout reaches 44-year-olds.
People aged 44 can expect to receive invitation texts from today, with two thirds of the previous age group - 45 to 49-year-olds - already having received their first dose.
The NHS said it would set out when 40 to 43-year-olds would be able to book appointments "in the coming days", as supply allows.
The total number of vaccine doses given in the UK reached almost 46.3 million on Sunday, with a further 498,430 second doses and 142,215 first doses reported.
Nearly two-thirds of the UK adult population have had their first vaccine, with 12 million fully vaccinated.
Matt Hancock, health and social care secretary, said: “Every vaccination gives us hope and I urge everyone to take up the offer of a vaccine when it comes, as we continue on the path back to normality.”
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