1. The key population of Nanning electronic health card can be cancelled in this way. After the personnel involved assigned the yellow code, the nucleic acid sampling was completed, and the nucleic acid test result was negative. The system automatically canceled the yellow code and changed it to the green code.
2. If the yellow code 14 days has not been detected, and there are no special circumstances, the system will automatically clear the yellow code and turn it into a green code.