Created at	Source	Raw Value	Validated value
Sept. 10, 2021, 3:30 a.m.	usa	Percentage of subjects with ≥ 4 fold rise of serum SARS-CoV-2-specific IgG titer from baseline	Percentage of subjects with ≥ 4 fold rise of serum SARS-CoV-2-specific IgG titer from baseline