US Coronavirus: A concerning variant is about to become dominant in the US, experts say, and how Americans act could help fuel or curb a surge - CNN
The safety measures will be especially crucial now that multiple variants of the virus are circulating -- including the highly contagious B.1.1.7 variant that was first identified in the UK. It's projected to become the dominant variant in the US by the end of this month or early April, Walensky said Monday.