Created at	Source	Raw Value	Validated value
April 7, 2022, 9:30 p.m.	usa	Number of participants diagnosed with New Covid-19;Number of participants diagnosed with serious Covid-19;Number of participants with negative SARS-CoV-2 test;Number of participants with self-reported airway infection	Number of participants diagnosed with New Covid-19;Number of participants diagnosed with serious Covid-19;Number of participants with negative SARS-CoV-2 test;Number of participants with self-reported airway infection
Oct. 31, 2020, 11:31 p.m.	usa	Number of participants diagnosed with serious Covid-19;Number of participants diagnosed with New Covid-19;Number of participants with laboratory confirmed respiratory tract infection;Number of participants with self-reported airway infection	Number of participants diagnosed with serious Covid-19;Number of participants diagnosed with New Covid-19;Number of participants with laboratory confirmed respiratory tract infection;Number of participants with self-reported airway infection