across europe, countries are battling to contain the omicron variant, heading into christmas. the netherlands has imposed its fourth lockdown closing nonessential shops, bars and restaurants. denmark has shut down theaters, cinemas and miewnlzs. in germany, gatherings could reportedly soon be limited to up to ten people and some travelers arriving in the country must now the u.k., meanwhile, is racing to give all adults a booster shot by the end of the year but is not reimposing severe restrictions yet says british primes boris johnson. >> unfortunately, we will have to reserve the possibility of taking further action to protect the public. >> reporter: one event that won't be going ahead here in london is the annual new year's eve celebration in trafalgar square. mayor sadiq khan tonight announced it will be canceled to