Health codes are based on real data and are declared online by citizens or people who return to work after rework. After background audit, personal QR codes are generated as electronic certificate for them to enter and leave this area.
Basic information
The purple QR code represents risk groups, including confirmed patients, positive patients, suspected cases and their close contacts, and discharged patients who have not passed the observation period 14 days. The green code indicates that there is no abnormality and it can pass normally in the city; The yellow code indicates home observation, and it is necessary to get in touch with the community neighborhood Committee for home isolation medical observation; Red team said "medical observation" and suggested contacting the Beijing Center for Disease Control and Prevention immediately.
People in yellow code and red team need to be converted into green code to travel normally. The query results include "centralized observation", "home observation" and "no abnormality", which are marked in red, yellow and green respectively. Because the disease control data is updated regularly at 24 o'clock every day, the validity of the user's query results is also as of 24 o'clock that day.
In some cities, the purple health code refers to the shield number added to the health code after the first dose of COVID-19 vaccine. The shield is light purple. The health code for unvaccinated citizens is that there is no shield shape. After the second dose of vaccine, the color of the shield around the health code declared by the public will turn light green.