The first case: if the holder stays in the high-risk area for more than 4 hours, the health code will change color, and it will also change color when passing through the high-risk area.
In the second case, if the holder's temperature exceeds 37.3 degrees when he goes out to take his temperature, he will be listed as a fever person and reported, and the health code will turn yellow.
Health code discoloration rule
From "red code" to "yellow code": the confirmed case was cured and discharged, and there was no recurrence symptom in 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.
Change "yellow code" to "green code": Close contacts have no COVID-19 symptoms after flow adjustment, and the "yellow code" is changed to "green code" after isolation 14 days.
Change from "green code" to "yellow code": before the validity period of "green code", if there is no health record of temperature measurement, change to "yellow code"; "Green code" personnel found fever symptoms after temperature measurement, and turned to "yellow code".