"As of December 21, 2021 (at 14:00 CET), the omicron variant has been found in 106 countries," the WHO said.

The organization stressed that the overall risk associated with the omicron strain remains very high.

The Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus previously said that the new strain of COVID-19 is spreading much faster than the "delta".