What is a time companion?

Spatio-temporal adjoint refers to the number that is in the same spatio-temporal grid as the confirmed number, within the range of 800 meters *800 meters, the * * stay time exceeds 10 minute, and the cumulative stay time of any number in recent 14 days exceeds 30 hours. Such numbers are space-time adjoint numbers.

How did the concept of space-time companion come into being? Since the outbreak in 2020, there have been many new concepts and words, such as close contact. I think many people have heard of it and know what it means. Recently, a new concept of epidemic prevention has emerged, which is called "space-time companion".

Since the discovery of local cases in Chengdu, Sichuan, the government has used big data and information resources to accurately track the trajectory of cases and comprehensively investigate overlapping people, and found that 82,000 people are at risk of temporal and spatial correlation.

Since 1 1.3, Chengdu, Sichuan Province has issued a reminder message for such risk groups, in which a new term-time-space companion has appeared, which immediately triggered a hot discussion among netizens. Some netizens also said that Chengdu took romance to the extreme with the help of lyrics.

What is a time companion?

According to the professional media, the time-space companion refers to my phone number, which is detected by the epidemic prevention system to be in the same time-space grid (800 m *800 m range) with the time-space companion staying for more than 10 minute, and the cumulative time-space companion staying at any number for more than 30 hours in recent 14 days. At this point, my green health code will turn into a warning yellow code and be marked as "time companion".

For example, you will understand that an infected person has been to a place within 14 days, and your trajectory coincides with him within this 14 day. Whether it is physical contact or communication signals, you have all appeared in the same time and space, and such people may be designated as "time and space partners."

What should time and space companions and people who receive prompt information do? As mentioned above, if the green health code defined as a space-time partner will turn into a yellow health code, don't panic at this time, report to the community, and then do nucleic acid testing twice within 3 days, with an interval of more than 24 hours. After the test result is negative, the yellow code will automatically turn into a green code.

If you receive the prompt information, you should report it to your community and neighborhood Committee, and then go to the corresponding nucleic acid testing institution for nucleic acid testing. Also, you should have two nucleic acid tests within 3 days with an interval of more than 24 hours. Don't go out at home until you get a negative result. After the negative result comes out, the yellow code will automatically turn to the green code.

Close contact with other epidemic prevention vocabulary

Refers to people who have close contact with suspected cases and confirmed cases (within the range of 1 m) and have not been effectively protected since 2 days before symptoms appear or 2 days before sampling asymptomatic infected people.

For example, family members who live together, people who have close contact in workshops, shifts, elevators and canteens, people who eat, entertain and provide services in confined spaces, and so on. In addition, disease control experts also pointed out that the whole carriage of high-speed rail and the three rows of passengers before and after the plane belong to this category.

Secondary close contact

Before close contact with confirmed cases and asymptomatic infected persons, people who had close contact with close contacts such as life, work and dinner were isolated, but effective protective measures were not taken. Among them, the family members and colleagues of close contacts are the key groups.

General contact person

Refers to people who have been in contact with suspected cases, confirmed cases and asymptomatic infected persons on the same means of transportation, and have been in contact with public places such as shopping malls, bus stops and subways, but do not conform to the principle of close contact.

It is everyone's responsibility to prevent and control the epidemic. We should always keep in mind that the epidemic situation is still there, and we must not take it lightly, raise our awareness of protection and strictly abide by epidemic prevention measures. Remember the habit of "wear a mask, wash your hands frequently, go out less, don't get together, don't get together" At the same time, don't believe in rumors, don't spread rumors, and learn about the epidemic from formal channels. Come on, China!