Is the communication big data travel card marked with *?

Q&A Summary of Communication Big Data Travel Card * (asterisk):

1. What does the travel code with an asterisk mean?

City names marked with * (asterisk) indicate that there are medium and high risk areas in the cities you visited in the past 14 days, but this does not mean that you have actually visited these medium and high risk areas.

Second, how to define the "route" on travel itinerary? "Passing by" means staying in a place for more than 4 hours. When you open the itinerary code with your mobile phone, the system will automatically record it as passing by or visiting.