http://www.newsweek.com/how-worried-stealth-omicron-ba-2-variant-detected-several-states-1672533 > The Omicron BA.2 sub-variant, which has been increasingly detected across Europe and Asia in recent days, has also been found in small numbers in the U.S. > Experts say that it's too soon to speculate on exactly what sort of risk BA.2 poses in comparison to the more dominant Omicron type, BA.1.