Anyone aged over 30 can get their Covid-19 vaccine in England from today - Wednesday.
One million more people aged 30 and 31 will be invited by text over the coming days, leaving only adults between 18 and 29 yet to get the nod.
In Wales over-18s can already book their jab appointments.
Dr Nikki Kanani, NHS England GP director, said: “Getting the vaccine is the single most important step we can take to protect ourselves, our families and our communities against Covid-19 with the jabs saving thousands of lives already.
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“The offer of a vaccine doesn’t expire so if you are eligible and haven’t booked please do come forward when you’re invited to.”
As of Tuesday, 38.2 million Brits had had at least one Covid vaccine dose and 23.2 million of these had received both.
People in their 30s are being offered either the Pfizer or Moderna vaccine.
On the advice of the government and Joint Committee on Vaccination and Immunisation (JCVI), people aged 50 and over and the clinically vulnerable are having their second doses brought forward to counter the spread of the Indian variant.
Dr Emily Lawson, NHS England vaccination lead, said: “This weekend the biggest NHS vaccination programme in history hit another outstanding and important milestone with more than 50 million life-saving jabs being administered across the country in under six months.”
