Omicron live updates: France's Constitutional Council approves Macron's vaccine pass

People aged 16 and older will need to show proof of vaccination to enter public places

• Largest study yet sheds new light on Covid-19 Omicron variant
• GCC countries reintroduce Covid measures amid surge in cases
• WHO: half of Europe will be infected with Omicron in weeks

Omicron – also known as B.1.1.529 – is a coronavirus strain with an unusually large number of mutations. It was first detected in South Africa, but has since spread around the world.

Follow our live blog below for the latest updates.

Updated: January 21st 2022, 9:17 PM