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Everything we know about the new COVID-19 variant 'Omicron'.
A new coronavirus variant named Omicron has raised concern around the world, after it was first reported in South Africa this month.
PARTFirst up, what actually is Omicron and where did it come from?
Omicron is a new variant "of concern" - a label the World Health Organisation has only given to four variants to date.
The variant was first reported in Botswana, South Africa, on November 24 and has since been found in South Africa, Hong Kong, Belgium and Israel.
So far, we know it has double the number of mutations as the Delta variant, with health authorities working to determine if it is more transmissible or infectious than other variants.
