Is it necessary to isolate the intersection of epidemic time and space? Is it a secret contact?

Recently, the epidemic situation in many places in China has led to the discoloration of many people's health codes, among which the reason for the yellowing of health codes is the intersection of time and space. So, is the intersection of time and space a close connection? If time and space intersect, is it necessary to isolate them? It is the first time for many people to encounter this situation, so they are not sure what to do when they encounter an epidemic in the intersection of time and space. Let's give you a detailed introduction.

Is the intersection of time and space closely related?

Close contact with the infected person or crossing time and space can be judged as close contact or sub-close contact.

"Time-space intersection" is a technical term of public security and telecommunications departments. Space-time intersection and space-time companionship are the same concept, which means that they stayed in the same space-time grid (800 m× 800 m) with the diagnosed patients for 10 minute within 14 days. In layman's terms, it is crossed with the travel trajectory of the confirmed patient 14 days. No matter whether the communication signal drifts or passes by, it may be considered as a time-space intersection crowd.

Does the intersection of time and space need isolation?

After being judged as the intersection of time and space by the system, the health code will turn yellow. For such people, it is necessary to carry out nucleic acid detection twice every three days and need to stay at home again. As long as it is negative, the green code can be restored.

The above is an introduction about whether the intersection of time and space is close. The intersection of time and space will lead to the yellow code of health code. During the period, it is necessary to isolate at home and pay more attention to epidemic information.