Just published @NEJM
Vaccine protection against the Delta variant from >4,000 cases + comparison w/ Alpha, by @PHE_uk
—mRNA, 2-dose: 88% effectiveness vs *any* symptomatic infection
—AZ, 2-dose: 67% pic.twitter.com/v0C57Okaec

— Eric Topol (@EricTopol) July 21, 2021