 "A sign reading 'Stay safe' in Regent Street, in London, November 26, 2021. A slew of nations moved to stop air travel from southern Africa on Friday, and stocks plunged in Asia and Europe in reaction to news of a new, potentially more transmissible C")
The Omicron coronavirus variant spread around the world on Sunday, with new cases found in the Netherlands, Denmark and Australia even as more countries imposed travel restriction to try to seal themselves off.
The World Health Organization (WHO) said it was not yet clear whether Omicron, first detected in Southern Africa, is more transmissible than other variants, or if it causes more severe disease.
"Preliminary data suggests that there are increasing rates of hospitalization in South Africa, but this may be due to increasing overall numbers of people becoming infected, rather than a result of specific infection," WHO said.
It said understanding the
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