Created at	Source	Raw Value	Validated value
April 22, 2021, 12:31 a.m.	usa	Percentage of Asymptomatic Participants who Remain Asymptomatic, i.e., who do not Develop Symptomatic COVID-19	Percentage of Asymptomatic Participants who Remain Asymptomatic, i.e., who do not Develop Symptomatic COVID-19