1, the "green code" was changed to "yellow code": the "green code" was changed to "yellow code" when fever symptoms were found after temperature measurement. For residents in high and medium risk areas, the health code will automatically change to the corresponding color from the date when the area is designated as high and medium risk area. After the risk area is downgraded, the color of the health code will also change. After the green code holder enters the high and medium risk area, the health code will automatically change color as long as he stays for 1 hour and the mobile phone is turned on and can receive communication roaming information. The yellow code is a reminder to people at risk of epidemic in COVID-19, so you don't have to be overly nervous. You only need to go to the nearest temporary sampling point (or medical institution) to detect nucleic acid as soon as possible to reduce unnecessary going out. When the nucleic acid test result is negative, the health code will return to the green code.
2. From "red code" to "yellow code": the confirmed case was cured and discharged, and there was no recurrence symptom in the isolation period 14 days; The suspected and febrile patients were diagnosed, and COVID-19 cases were excluded. After 14 days of quarantine, COVID-19's symptoms did not appear, and a "yellow code" was issued.
3. Change from "yellow code" to "green code": Close contacts have no COVID-19's symptoms after the process adjustment, and the "yellow code" will be changed to "green code" after the quarantine expires 14 days.