According to the epidemic risk level, if you go to the middle and high risk area, the health code will change color; If it is a low-risk area, the health code is still green.
Health code is a digital health assessment certificate, that is, our pass is processed electronically. Health codes are distinguished by three colors, namely, green code, red code and yellow code, which are managed dynamically. The green code can pass normally with bright code, and the red code and yellow code need to be isolated by themselves as needed.