Germany warned it could have 6,000 people in intensive care by Christmas; Nigeria says retrospective sequencing of previous cases has found Omicron
- US to require stricter Covid testing for all travellers
- WHO advises vulnerable, unvaccinated and over 60s, against travel
- Greece to fine €100 per month for those over 60 who refuse vaccine
- When did the Omicron variant arrive in UK and is it spreading?
- UK coronavirus updates – live
Three people who escaped an Australian Covid quarantine facility have been arrested.
Our reporter Cait Kelly from Melbourne, Australia, has the story.