What do you mean, time and space are accompanied by suspected close contacts?

The meaning of time and space accompanied by suspected close contacts is as follows:

It means staying within 14 days in the same space-time grid as the confirmed patient (usually taking 800 m× 800 m as the detection range) 10 minute. In layman's terms, for example, if the patient has been to a certain place within 14 days, the trajectory of you 14 days intersects with him. Whether it is a physical brush or a drift in communication signals, it may be considered as a problem of time and space.

The health code will turn yellow when the system detects that you are with the confirmed patient in time and space, and you belong to the time and space partner in the risk group. Health code yellow code personnel should immediately report to the community after receiving the SMS prompt, and conduct three nucleic acid tests within 7 days, and the interval between nucleic acid tests should be more than 24 hours. Please stay at home and don't go out until you get a nucleic acid negative result.

The transcoding condition is that the space-time partner should take the initiative to do three nucleic acid tests within 7 days, and all the test results are negative, which can be automatically converted into green codes.

What is a secret connector:

Close contact is close contact. Refers to the personnel who have close contact with suspected cases and confirmed cases 2 days before symptoms appear, or 2 days before asymptomatic infected persons are sampled, but have not taken effective protective measures. According to the epidemiological investigation results and big data information provided by relevant departments, epidemiological investigation professionals judge them as close contacts.