Everyone over 18 will be able to book their coronavirus vaccine by the end of this week.
Downing Street confirmed that all those aged 18 and over would be offered their first dose of a coronavirus vaccine by Friday, after it was announced by chief executive of NHS England Sir Simon Stevens.
The Prime Minister's official spokesman told a Westminster briefing: "From the end of this week, over-18s will be able to get their jab."
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Sir Simon Stevens said that the NHS would "finish the job" of the Covid-19 vaccination programme to the "greatest extent possible" over the next four weeks during the extension of lockdown.
He said that just 1% of hospital beds in England are occupied by patients with Covid-19.
And the average age of people in hospital has "flipped" thanks to the vaccination programme as now there are more younger people seeking care who typically have better outcomes.
Meanwhile the NHS has been given orders to "gear up" for new Covid-19 treatments, which the NHS expects to come online in the next few months which will also help to prevent severe illness and death.
These new treatments are expected to be given to people in the community, without the need for hospital treatment, within three days of infection.
Sir Simon told the NHS annual conference: "It is now very important that we use the next four weeks to finish the job to the greatest extent possible for the Covid vaccination programme, which has been a historic signature achievement in terms of the effectiveness of delivering by the NHS - over 60 million doses now administered.
"By July 19 we aim to have offered perhaps two thirds of adults across the country double jabs.
"And we're making great strides also in extending the offer to all adults, today people aged 23 and 24 are able to vaccinate through the National Booking Service.
"I expect that by the end of this week, we'll be able to open up the National Booking Service to all adults age 18 and above.
"Of course, vaccine supply continues to be constrained, so we're pacing ourselves at precisely the rate of which we're getting that extra vaccine supply between now and July 19."
Sir Simon added: "At the moment about 1% of hospital beds in England are occupied by patients with a Covid diagnosis and the age distribution has really flipped as a result of vaccination.
"Back in January, it was 60/40 - 60% of beds occupied by people over 65, 40% (occupied by people) under 65.
"Now it's flipped to 30/70, so it's about 30% occupied by people aged 65 and over 70% by younger people whose prospects are much greater."
