Created at	Source	Raw Value	Validated value
Feb. 23, 2021, 12:31 a.m.	usa	Proportion of participants who experience a systemic allergic reaction to either dose of the Moderna COVID-19 Vaccine;Proportion of participants who experience a systemic allergic reaction to either dose of the Pfizer-BioNTech COVID-19 Vaccine	Proportion of participants who experience a systemic allergic reaction to either dose of the Moderna COVID-19 Vaccine;Proportion of participants who experience a systemic allergic reaction to either dose of the Pfizer-BioNTech COVID-19 Vaccine