Coronavirus Disease 2019 Vaccine Effectiveness Against Severe Acute Respiratory Syndrome Coronavirus 2 Infection in the United States Before the Delta- and Omicron-Associated Surges: A Retrospective Cohort Study of Repeat Blood Donors.
Eduard GrebeElaine A YuMarjorie D BravoAlex WelteRoberta L BruhnMars StoneValerie GreenPhillip C WilliamsonLeora R FeldsteinJefferson M JonesMichael P BuschBrian CusterPublished in: The Journal of infectious diseases (2022)
The time since first reporting vaccination, age, race and/or ethnicity, region, and calendar time were statistically significant predictors of incident infection.