April 13, 2021

Immune response to vaccination after COVID-19

 
 

At a Glance

  • After a single dose of the Pfizer-BioNTech vaccine, people with a prior COVID-19 infection had antibody levels similar to those of people without prior infection after two vaccine doses.
  • The results, which need to be confirmed in large, diverse populations, may point to a strategy to stretch the currently limited supply of vaccines against COVID-19.