Why do two people travel the same way, one receives a message that crosses time and space, and the other doesn't?

According to the investigation of the places where the infected people have been active, you may have time and space intersection with the infected people in a short time. Two people can't have exactly the same itinerary. You've been in contact with it, but no one in the same industry has.

Using the concept of time-space crossing population in epidemic tracking can find as many potentially dangerous populations as possible, and bring more people who may be infected because of time-space crossing into epidemiological monitoring, which plays an important role in finding positive cases in time, and of course means that the workload of epidemiological monitoring has doubled.

Receiving information means isolating at home for seven days, then informing or reporting to the community for further instructions, and finally doing 2-3 nucleic acid tests within seven days, all of which are negative before orderly flow. Try not to go out during the isolation period, and the property or community will help you.