The health code is based on real data, which can be declared online by citizens or people who return to work after rework, and the personal QR code is generated after background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city.
Health code was born under the background that the whole industrial chain is trying to resume work and production, and it is a new technology to establish an economic and social operation order that adapts to epidemic prevention and control. During the epidemic, the health code is the product of individuals entering and leaving electronic certificate, and it is the product of using big data to strengthen the joint prevention and control of COVID-19 epidemic.
There are several situations in which the yellow code appears.
Yellow code is the abbreviation of the phenomenon that health code is yellow in epidemic prevention work in COVID-19. The body temperature is above 37.3℃ or there are clinical manifestations such as respiratory symptoms (dry cough, expectoration, nasal congestion, sore throat, shortness of breath and dyspnea), physical discomfort (fatigue, muscle pain, headache and joint pain), digestive tract symptoms (abdominal pain, diarrhea, nausea and vomiting) and conjunctival hemorrhage.
People from epidemic risk areas may have had close contact with confirmed patients, suspected patients and asymptomatic infected people within 14 days, such as taking the same public transport and living in the same building unit; Other personnel who need to be included in the yellow code management.