The yellow code of the health code is to identify people at moderate risk who have certain symptoms or are isolated at home. By identifying the yellow code, the harm caused by upgrading the low-risk population to high-risk can be effectively avoided. Health code yellow code personnel try to reduce the flow, consciously suspend group activities such as dinner and participation. Health code yellow code personnel are not allowed to enter hotels, shopping malls, supermarkets, stations, airports, cinemas, KTV, bars and other public places as well as schools, various prisons, nursing homes and welfare homes and other special places.
After the green code holder enters the high and medium risk area, the health code will automatically change color as long as he stays for 1 hour and the mobile phone is turned on and can receive roaming information. The yellow code is a reminder to people at risk of COVID-19 outbreak, so there is no need to be overly nervous. He only needs to go to the nearest temporary sampling point to detect nucleic acid as soon as possible to reduce unnecessary going out. After the nucleic acid test result is negative, the health code will return to the green code.