I am baffled at CDC’s decision to shorten isolation. Here are tests from the same person: day 0 (3 days after exposure) and day 8. The person still has a huge amount of virus in their nose 8 days after testing positive. n=59. Quickest clearance 6 days, longest (vacc) 8.5 days. pic.twitter.com/yKuXG4NwUO

— Erin Bromage Ph.D. (@ErinBromage) December 27, 2021