SARS-CoV-2 infection weakens immune-cell response to vaccination
NIH, National Institute of Allergy and Infectious Diseases (NIAID)The magnitude and quality of a key immune cell’s response to vaccination with two doses of the Pfizer-BioNTech COVID-19 vaccine were considerably lower in people with prior SARS-CoV-2 infection compared to people without prior infection, a study has found.