An illustrative image of medical syringes in front of a Johnson and Johnson logo displayed on a screen. On Monday, January 18, 2021, in Dublin, Ireland. (Photo by Artur Widak/NurPhoto via Getty Images) ((Photo by Artur Widak/NurPhoto via Getty Images))These are preliminary findings from a study of 44,000 volunteers that isn’t completed yet.
Researchers tracked illnesses starting 28 days after vaccination – about the time when, if participants were getting a two-dose variety instead, they would have needed another shot.After day 28, no one who got vaccinated needed hospitalization or died regardless of whether they were exposed to "regular COVID or these particularly nasty variants," Mammen said.