The tier for each area is due to be announced on Thursday.
There was also good news for grassroots sports such as children's football outside school will be able to resume after being shut down on November 5.
"These findings show that we have an effective vaccine that will save many lives", said Andrew Pollard, chief investigator of the Oxford vaccine trial, which is run in partnership with Cambridge-headquartered pharmaceutical company AstraZeneca.
Oxford's results may not have the eye-catching high efficacy headline totals of the recent announcements from Pfizer and Moderna, but they could actually represent some of the most promising yet for a few different reasons.
Mr Johnson, speaking via videolink at a Downing Street press conference as he continues his self-isolation, said: "We can hear the drumming hooves of the cavalry coming over the brow of the hill but they are not here yet".
"We need to impose these restrictions and it is right to target the toughest measures only in the areas where the virus is most prevalent or where we are seeing sharper increases in the rate of infection. The NHS has vast experience in delivering widespread vaccination programmes and an enormous amount of work has taken place to ensure we have the logistical expertise, transport and workforce to roll out a vaccine according to clinical priority, at the speed at which it can be manufactured", said Health Secretary Matt Hancock.
Prime Minister Boris Johnson has today outlined his Winter Covid Plan which included details of a revised tier system.
The easing of restrictions will see people permitted to leave their homes for any goal, with public religious ceremonies and certain leisure activities once again allowed.
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Richard Haass, president of the Council on Foreign Relations, wrote on Twitter that Blinken would be a strong secretary of state. The Secretary of State is regarded as one of the most prestigious Cabinet posts.
The government is now advising people against travelling to tier three areas.
People will be able to attend weddings and funerals in tier one areas, but with a limit of just 15 guests at marriage ceremonies and 30 at burials and cremations. And in tier 3, indoor entertainment and hotels will close, and restaurants and pubs will only be allowed to open for take-out.
Pubs will also be allowed to serve last orders at 10pm, before closing at 11. The ban on supporters in stadiums will continue for areas in tier 3. He said although Britain will return to the regional system that was in place prior to the lockdown, he has received scientific advice indicating the tiers need to be tougher to adequately reduce the infection rate.
Mixing indoors is set to remain tightly controlled, with only households in tier one areas allowed to do so - and even then subject to the above rule of six.
Here are the key points from Mr Johnson's statement to the Commons.
This could include greater freedoms for people who test negative and the prospect of daily tests replacing precautionary self-isolation for people who come into contact with an infected person. "It's sensible that those allowed to open will have curfews extended".
The Government is working on a time-limited Christmas dispensation with Scotland, Wales and Northern Ireland.