Correlations between anti-SARS-CoV-2-specific antibody titers and time from vaccination
All measured virus-specific antibody levels showed a significant negative correlation with the number of days elapsed between full vaccination and blood sampling (Supplementary Figure S1). In addition, the serum levels of anti-S IgG, anti-RBD IgG, anti-S IgA, and anti-RBD IgA exhibited a significant positive correlation with the measured nAB titers (Supplementary Figure S2).