US
Authorities in the 27-nation EU are analysing another six 'probable' cases
Many countries have imposed travel bans after variant was first detected in South Africa and Botswana
Serbian tennis star’s father likens Covid vaccination rules for next year’s first Grand Slam to ‘blackmail’
Countries worry that the variant may spread fast even in vaccinated populations
Decision comes after a man who recently returned from South Africa tested positive for Covid-19
The report says globally, international tourist arrivals rose 58% between July and September
WHO designated Omicron a 'variant of concern', days after the variant was first reported
US citizens do not need to be vaccinated to return home
Says the variant could have 'severe consequences' in some places
13 people with Omicron variant came to Netherlands from South Africa, say authorities