⚠️SURGING #B117 WITHIN US—growing 7% per day, doubling every 9.8 days nationally, & expected to become dominant by March 23rd. It is surging fastest in Florida—doubling every 9.1 days. Scientists are extremely worried: 35-45% more transmissible.🧵#COVID19 https://t.co/T3GV8anzYz pic.twitter.com/RFyifNq4QS

— Eric Feigl-Ding (@DrEricDing) February 7, 2021