What does it mean that the epidemic situation coincides in time and space?

Time-space coincidence of epidemic situation refers to the coincidence of places where confirmed cases or asymptomatic infected people have been in COVID-19. When tracks overlap, they are usually designated as close contacts.

1. Overlapping scope of epidemic in time and space 1: same community

Community refers to a society composed of people from the same place, region or country, which is a group composed of a certain ethnic group in a country, such as the Chinese community in the United States; As small as a block. In this case, a community prevention and control expert said that the current measures of time and space overlap are mainly based on the intersection of big data verification and risk groups, but further accurate verification is needed. At present, the problem of "infinite cycle" of social reaction should be solved soon.

2. Spatio-temporal overlapping scope of epidemic situation II: the same supermarket

? Shang Chao is the classification standard for shopping malls, supermarkets, markets and terminals. If the confirmed patient has been to a supermarket according to the local notification, and you happen to have been there at the same time, it is a coincidence in time and space of the epidemic.

3. Epidemic situation 3 Time and space overlapping range: the same station airport.

This is easy to understand. Some confirmed cases took the high-speed rail or train, but you and he were in the same carriage or train, which would also be considered as the overlap of epidemic time and space.

However, Beijing's requirement of "overlapping time and space" in epidemic-related areas may cause some people who have never been to medium and high-risk areas, have been vaccinated, have negative nucleic acids and have a green code of travel to be unable to return to Beijing.

Generally speaking, the time-space coincidence of epidemic situation refers to the location that coincides with the trajectory of confirmed cases of epidemic situation in COVID-19, such as in the same community, the same supermarket or the same station and airport, including the time-space coincidence range.