More Contagious B.1.1.7 Variant Is Spreading Fast in US, Even as Overall Cases Level Off

As US #coronavirus cases remain at a low not seen since October, the more contagious #B117 variant first reported in the UK has likely grown to account for >20% of new US cases as of this week.

https://www.nytimes.com/interactive/2021/03/06/us/coronavirus-variant-sequencing.html