Covid news live: Omicron likely to become dominant variant, Harvard researcher says; France to close nightclubs

The Omicron Covid variant is likely to 'outcompete Delta' in many, if not all, regions, an infectious disease researcher says; nightclubs in France will be ordered to close for four weeks to counter a Covid surge New York City sets Covid vaccine mandate for all private employers 'Travel apartheid': Nigeria condemns England's Covid red list Omicron variant has now been detected in 16 US states Omicron: what do we know about the new Covid variant? See all our coronavirus coverage The Netherlands i...