News How serious is omicron? It will take weeks to understand new COVID-19 variant, experts say. November 30, 2021November 30, 2021 Elizabeth Weise, USA TODAY Comments Off on How serious is omicron? It will take weeks to understand new COVID-19 variant, experts say. The new omicron variant presents more questions (and uncertainty) than answers. And it will take a few weeks for data to be collected and tracked.