The vaccine roll out reaches those in their early sixties this week.
Almost two million people aged 60 to 63 will be invited to book a Covid jab this week as the NHS vaccination programme, the biggest in health service history, gains fresh momentum.
The letters will start landing on doormats tomorrow (Monday) explaining how they can make an appointment to get jabbed through the national booking service.
They have been sent after more than three in four people aged 65 to 70 took up the offer of a vaccination.
In all, more than 16.5 million people across England, over a third of the adult population, have received the life-saving jab.
People are being invited to be vaccinated in order of risk, which increases with age.
Next in line after this week will be those in their fifties.
Sir Simon Stevens, chief executive of NHS England, said: “Since around four fifths of 65-69 year olds have now been vaccinated, we’re rapidly working our way down the generations, with people ages 60+ now able to come forward.
“As expected vaccine supply increases in March, we’re planning for further acceleration as we head towards Easter.”
Professor Stephen Powis, the NHS’s national medical director, said: “I would like to thank my colleagues across the NHS, along with all the volunteers and others working on the programme, for their hard work which has seen more than 17 million jabs given in a matter of weeks.
“I would urge anyone who has been invited to take up the offer – it doesn’t matter when you were invited you can still come forward and protect yourself and others.”
The latest invites come after the NHS wrote out to almost 450,000 people age 64 along with 600,000 who have recently been asked to shield last week.
The push to get as many of the most at-risk people protected means nine in 10 people in the top four priority groups have received a jab.
People can use the national booking service to reserve a slot at one of more than NHS Vaccination Centres or almost 200 pharmacy-led services across the country.
The booking service can be accessed at http://www.nhs.uk/covid-vaccination. Those who cannot go online can call 119 free of charge.
NHS teams are visiting those who are housebound and cannot travel to a vaccination service.
Vaccinations are now being administered at more than 1,600 sites across the country, including mosques, museums and rugby grounds, with the distribution of centres meaning 98% of the country lives within 10 miles of at least one vaccination service.
Appointments are staggered to allow for social distancing and people are being asked not to turn up early to avoid creating queues.
Everyone will receive a health status check and a pre-vaccination assessment before they have their jab.