http://www.newsweek.com/omicron-covid-variant-detected-countries-b-1-1-529-world-health-organization-1653832

The World Health Organization (WHO) designated the COVID variant B.1.1.529 a variant of concern giving it the name "Omicron" on November 26.

Currently, it seems that the Omicron variant is highly divergent with a high number of mutations, some of which are concerning as they could be associated with an increased possibility of escaping immune responses.