I’m concerned about the new #BA2 sub variant of #Omicron. In the left panel, you see it is surging (light green) to almost half of all Danish 🇩🇰 #Omicron cases—surpassing the old Omicron BA1 variant by a lot. Either it’s much faster transmission or it evades immunity even more.👇 pic.twitter.com/f5vhHOZl5H

— Eric Feigl-Ding (@DrEricDing) January 23, 2022