Post-vaccination antibody responses correlate positively with the total score of side effects. Spearman correlation analysis between total score of side effects and S-RBD IgG levels before the second dose (B2D, n=84), 1 week (1wA2D, n=85), 6 weeks (6wA2D, n=82), 12 weeks (12wA2D, n=82), and 6 months (6mA2D; n=75) after the second dose. Spearman correlation coefficient and exact p-values are given.