ScienceGlobal issues(More infectious) stealth omicron taking overTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceGlobal issuesConor Dillon | Gabriel Borrud03/12/2022March 12, 2022BA.2 is the most contagious variant ever analyzed. We're dropping our mandates anyway.https://p.dw.com/p/48MD9Advertisement