ScienceWhat is 'stealth omicron'?To play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceConor Dillon | Gabriel Borrud01/21/2022January 21, 2022Some virologists are already considering stealth omicron a variant of concern. Should we be worried?https://p.dw.com/p/45usIAdvertisement