Four codes, one screen, and four codes combined search are the verification of four key epidemic prevention data on health codes, such as green code, nucleic acid, vaccine and itinerary. At present, the four-code data of provincial health code platforms have not been completely unified, and the four-code data is being rapidly improved.
The meaning of "*" on the itinerary card.
The name of the city is marked with "*", which indicates that the city where the user arrived or passed (stayed for 4 hours) in the past 14 days has medium or high risk areas.
For example, Area A belongs to City B. If Area A is a medium-risk or high-risk area and other areas in City B are low-risk areas, then as long as the user arrives in City B or stays in City B for 4 hours, even if he has never been to Area A, City B and an * will be displayed on the travel itinerary code.