If the green code has expired, it will become yellow code or red code after expiration, but if it is isolated after 14 days, there will be no symptoms. What if the body temperature is normal and the nucleic acid test is negative, and the health code will automatically become a green code?
However, if the size enters the high school risk area, the phone will automatically change color and the health code will automatically change color as long as it is turned on in another hour.