6) that said, within the same person, this fraction that escape antibodies also changes over time. On day 18, there was a lot of escape w/ E484, but on day 94, much less. Hence lots of uncertainty about vaccine or MAB drugs long term. pic.twitter.com/FhALT8XFE9

— Eric Feigl-Ding (@DrEricDing) January 11, 2021