
Nate Silver @NateSilver538
Yeah, it's pretty misleading when Pfizer cites only 52% efficacy from a single dose. Have seen several experts cite 80-85% ish efficacy instead from looking at this data. — PolitiTweet.org
zeynep tufekci @zeynep
Pfizer reports "52.4% efficacy" for single dose but that includes the first seven days, before things kick in, when… https://t.co/GlbgJRvLXk