https://www.siliconvalley.com/2021/06/14/covid-delta-variant-cases-doubling-every-two-weeks-in-u-s/

(CNN) — The Delta variant is on its way to becoming the dominant strain of coronavirus in the US, raising concerns that outbreaks could hit unvaccinated people this fall.

And a new study shows the Delta variant is associated with almost double the risk of hospitalization compared to the Alpha variant.