http://www.newsweek.com/stealth-omicron-ba-2-covid-variant-1-5-times-more-contagious-vaccines-work-1673846

The Omicron BA.2 COVID-19 sub-type may be 1.5 times more contagious than the previous BA.1 type, according to new data from Denmark—but booster shots work against it.

The country has been one of the worst-affected in Europe by the BA.2 sub-type which has been responsible for an increasing proportion of COVID-19 cases in a number of nations recently.