Beijing Health Code: Will it be abnormal if you take the bus for more than three days?

No. Only when the user has been to the epidemic risk area, the health code will turn yellow or red within three days, and there will be no abnormality in taking a bus in the risk-free area of Beijing for three days. Health code is a personal two-dimensional code based on actual real data, which is generated by citizens or people who have returned to work on their own online declaration and background audit.