Spike Antibody Levels of Nursing Home Residents With or Without Prior COVID-19 3 Weeks After a Single BNT162b2 Vaccine Dose

JAMA. 2021 Apr 15;325(18):1898-1899. doi: 10.1001/jama.2021.6042. Online ahead of print.


This study compares IgG antibody levels after a single dose of the BNT162b2 (Pfizer-BioNTech) vaccine in nursing home residents with vs without prior COVID-19.