Boris Johnson has announced a further rollout of the Covid booster jab to combat the Omicron variant.

Speaking from Downing Street the Prime Minister said he planned to offer everyone eligible for a booster jab a dose by the end of January 2022.

Mr Johnson called the press conference following the introduction of restrictions implemented to try and control the spread of the Omicron variant, such as the mandatory wearing of face masks in shops and on public transport.

Joining him for the briefing were Health Secretary Sajid Javid and CEO of NHS England, Amanda Pritchard.

Covid booster rollout

Mr Johnson spoke of his desire to offer everyone eligible for a booster jab a dose by the end of January 2022.

This will be done in five-year age bands, and the Prime Minister asked people to not try and get their booster until they got their email from the NHS.

He also asked people to encourage their friends and family to get the booster when their time came.

READ MORE: Omicron variant: where have cases been found?

Number of Omicron cases

Sajid Javid confirmed there are 13 cases of the Omicron variant in England and 9 in Scotland which was expected to rise.