Created at	Source	Raw Value	Validated value
Jan. 22, 2022, 3 a.m.	eu	• Rate of 2-fold antibody titre increase 14 days after the 4th vaccination dose measured by quantitative enzyme-linked immunosorbent assay (Anti-RBD-ELISA) against wild-type virus.	• Rate of 2-fold antibody titre increase 14 days after the 4th vaccination dose measured by quantitative enzyme-linked immunosorbent assay (Anti-RBD-ELISA) against wild-type virus.
Oct. 20, 2021, 8 a.m.	eu	• Rate of 2-fold antibody titre increase following 3rd dose vaccination measured by quantitative enzyme-linked immunosorbent assay (Anti-RBD-ELISA) against wildtype virus 14 days after 3rd dose.	• Rate of 2-fold antibody titre increase following 3rd dose vaccination measured by quantitative enzyme-linked immunosorbent assay (Anti-RBD-ELISA) against wildtype virus 14 days after 3rd dose.