ScienceThe omicron 'wall'To play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceConor Dillon | Gabriel Gonzalez Zorrilla12/30/2021December 30, 2021The omicron numbers are already awful. Yet there's a case for cautious optimism based on what we've seen so far.https://p.dw.com/p/44zxKAdvertisement