- NHS England is to issue detailed guidance to hospitals, pharmacists and GPs about expanding the Covid booster vaccine rollout
- The government plans to offer all eligible adults in England a booster by the end of January in response to the new Omicron variant
- NI has also announced extra vaccination clinics, while Scotland and Wales have said their booster programmes will be ramped up
- A total of 22 cases of Omicron have been confirmed in the UK so far - 13 in England and nine cases in Scotland linked to a single event
- Health Secretary Sajid Javid is urging people to be "sensible" around Christmas parties and consider taking rapid tests
- Europe continues to battle rising Covid cases as travel bans take effect to slow the spread of Omicron
Welcome to our live coverage of the coronavirus pandemic.
Here are the main headlines so far today:
- NHS England is to issue detailed guidance to hospitals, pharmacists and GPs about the major expansion of the Covid booster vaccine programme
- The impact of the Omicron variant on the UK is "highly uncertain" but may require a "very stringent response", government advisers have said
- Northern Ireland has also announced extra vaccination clinics to meet demand. Scotland and Wales have said their booster programmes will be ramped up, but are yet to lay out the full details
- Australian police have arrested three people who broke out of a Covid quarantine compound in the middle of the night
- Stricter coronavirus testing is set to be required for all travellers to the US amid Omicron variant concerns, the Washington Post reports.
- All eligible adults in the UK should be offered a Covid booster jab by the end of January, British prime minister Boris Johnson announced.
- The Omicron variant was present in Europe at least 10 days ago, according to health authorities in the Netherlands.
- Austria extends lockdown to 20 days after lawmakers voted to extend a nationwide lockdown by 10 days on Tuesday, bringing the total lockdown ending on 11 December to 20 days.
- Germany’s constitutional court has ruled that sweeping restrictions to stem Covid infections such as curfews, school closures and contact restrictions were lawful, in a decision that could pave the way for further curbs.
- Greece has said it will fine people over the age of 60 who have not received a first Covid-19 shot €100 per month from 16 January.
- All travellers entering Ireland will now have to show negative Covid tests.
- An expert committee voted to recommend the US Food and Drug Administration authorise Merck’s Covid pill for high-risk adults, the first of a new class of antiviral drug that could tackle Omicron and other variants.The drug, molnupiravir, is likely to be approved for older and more vulnerable people at greater risk of severe illness.
- Brazil reports first Omicron cases in Latin America after detecting two cases of the Omicron Covid strain on Tuesday, the country’s health regulator, Anvisa, said.
- Slovenia has halted use of Johnson & Johnson’s Covid-19 vaccine after experts confirmed a death in September was related to an extremely rare blood-clotting condition.
- Poland records highest Covid deaths since April with 526 deaths in the past 24 hours.
- Israel’s health minister says boosters may protect against Omicron.
- The US Food & Drug Administration says it is evaluating the effectiveness of authorised Covid vaccines against the Omicron variant and expects to have more information in the next few weeks.
- Japan confirmed its first case of the Omicron variant. A Namibian diplomat in his 30s is thought to have tested positive for the variant.