Created at	Source	Raw Value	Validated value
Dec. 11, 2020, 1 a.m.	irct	COVID-19 Patients Close contact with COVID-19 Patinets No current and previous infection with COVID-19 (for the preventive phase)	COVID-19 Patients Close contact with COVID-19 Patinets No current and previous infection with COVID-19 (for the preventive phase)
Oct. 26, 2020, 8:37 a.m.	irct	COVID-19 Patients Close contact with COVID-19 Patinets	COVID-19 Patients Close contact with COVID-19 Patinets