Assessing SARS-CoV-2 immune markers in vaccinated asymptomatic adults after household exposure in Canada (AB-PROTECT): a prospective cohort study.
BACKGROUND Determining the early immune response against SARS-CoV-2 in individuals who are vaccinated is essential for better understanding immune memory and informing COVID-19 vaccine design and use. We aimed to evaluate antibody and T-cell immune markers against SARS-CoV-2 infection among household contacts of index...