The health code shows why the bus cannot be used for three days.

It is required to provide nucleic acid detection certificate within 72 hours. According to the relevant information inquired, if the pop-up window prompt of "three days and two inspections" on the health code cannot be closed, you can't take the bus or subway before the pop-up window prompt is unlocked, and you can't enter public places where people gather. For the health code, it can't be done within three days. You need to provide nucleic acid test certificate and health code green code within 72 hours before you can go to public places. If the nucleic acid test proves more than three days, you can't go to public places.