Nate Silver @NateSilver538
Yeah for a long time the smart people seemed to think it might take say 18 months to develop a vaccine that was ~70% effective. Instead it took 10 months to get one that's ~80% (infection) to ~95% (hospitalizations and deaths) effective even against Delta. Seems pretty good! — PolitiTweet.org
Mike Bird @Birdyword
I will not allow myself to become morose about Covid because of evidence that the transmission reduction from vacci… https://t.co/OxCqJlg4bt
