
Nate Silver @NateSilver538
As an aside, the vaccine appears to take a bit longer to take effect IRL than in trials. But that's not a surprise, since trial data was ostensibly among people who were COVID- at the time of vaccination. In real life, some early positives will reflect cases acquired pre-vaccine. https://t.co/utmx7MivIE — PolitiTweet.org