65438+February 7, the whole country was unsealed. Why hasn't our community been unsealed?

Xinhua News Agency: After nucleic acid screening in key areas, some communities have been out of control after 48 hours, while others have not. Now, nucleic acid testing continues. What is the reason?

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Wu Fan: Your question asked the voice of netizens, and you were very concerned when you saw that everyone in the circle of friends was asking. In the early stage, on the one hand, nucleic acid screening was carried out in key areas, and at the same time, nucleic acid screening was carried out in non-key areas. At present, many positive infections have been found in these nucleic acid screening areas. You may ask, I have been screened and it is still negative. Why don't you help me open it? There are several issues that we need to understand together.

First of all, this method of nucleic acid screening may be a little delayed. We usually go to the hospital for nucleic acid testing, and the results can be found online more than four hours or half a day after collection. Why not this time? There are objective reasons for this, because this is a large-scale, very large-scale screening, and we use mixed inspection. 10: 1 in the early stage, and 20: 1 later. If a positive test tube is found after the test, who are the 20 people in this test tube? Next, we need to find these 20 people. Of course, we all have records. We have to sample these 20 people separately, and some of them are sampled at home in the community. After sampling, these 20 people will be rechecked in a test tube. After the examination, one of them was confirmed to be positive. It is necessary to conduct a preliminary epidemiological investigation around the relevant information of this person and collect accurate relevant medical information and personal information. After all the information is collected, it will be reported for review. This screening is different from peer-to-peer screening when going to the hospital in peacetime. After this series of processes, everyone feels differently.

As an ordinary citizen, you may not feel the following procedure, but you feel that the sample has been collected for a long time and has not been unsealed. What happened to my community? My results came out, but there was no comment in the community. Actually, I'm waiting for further test results and subsequent judgment. Everyone should be patient.

The second question, someone asked me, this community was told to do it twice in 48 hours before, and later it was told to do it twice in 48 hours. It seems that I was told to do it again 24 hours yesterday. What happened? Since two 48 hours add up to one 24 hours, can you inform me for five days at the beginning, so that I can have expectations and plan according to five days? This is related to the hierarchical and gridded way of "flow reduction+nucleic acid screening".

The key areas identified this time are defined by towns according to the previous epidemiological situation, the number of cases and the potential risks in the mode of transmission. After the planning, these towns reduced the flow and started nucleic acid screening, using this strategy.

What I just explained is how to screen. There are several cases of positive results after screening. One situation is that the whole town is negative and the whole town is unsealed. We have such towns, which are all negative, but not many. Key towns will be more or less positive, some more, some less. It doesn't matter. At this time, gridding began to work. If the street town doesn't control the flow and grid, it will have to start all over again.

Now after gridding, there is almost no flow between grids. If there is a positive in any grid, further screening will be carried out in that grid. At this time, the power grid may be residential areas, enterprises or factories. You can directly understand it as a residential area and further screen it. During the screening process, everyone was relatively still. After screening again, it was found that some buildings were positive and some buildings were negative. The grid unit is further refined to buildings. If the building is not positive, it will be unsealed, and the buildings with positive will continue to be screened.

In this process, if a positive person is found, the first thing to do is to repair it. If the positive person stays at home, don't move or come out. As long as we fix it there and wait for it to be transported away, we can control the spread of the disease and block it. Everyone can understand the relationship of "street town-community-construction".

This explains why after 48 hours of screening, positive people were found, and the community was closed for 48 hours, so the building had to be screened again. Screening key areas and non-key areas is equivalent to everyone's physical examination. When they take a CT film, if they see the place clearly, they may find something wrong.

This CT film is equivalent to a screening problem. After analyzing and judging, the doctor thinks that there may still be some problems in this place, which is a bit serious, and then he starts treatment. There is a kind of treatment called targeted therapy, which is not to kill 10,000 enemies with one drug and lose 8,000, but to precisely target the treatment. Now the grid is a bit like this. After finding out, we will find out where there is a problem and carry out targeted screening and control in the next step, and carry out targeted control. This is a series of work done recently.

As of yesterday, a new round of judgment was made according to the previous screening results. According to the comprehensive requirements and the results of the last round of targeted governance, the city and districts were re-evaluated. The problem area has been reduced, and it is very targeted to make a diagnosis and treatment plan according to the reduced situation. It is easy for everyone to understand this.

With the new round of key plans, the area has been greatly reduced. We saw that some netizens said, "I happened to be left in a key area and received a notice from the town. Next, I have to do nucleic acid screening." I shared it with you through the internet. This applies to the example of "targeted therapy". Just because your community needs "targeted therapy" doesn't mean that other people's communities should also carry out "targeted therapy". For example, if you go to see a doctor, the doctor will prescribe medicine for you. The medicine you take is only suitable for yourself and can't be shared with others. So your community needs to be screened next, which does not mean that other communities need to be further screened. When transmitting information, we still have to find out the scope of application of the information, who wants to take this medicine, not everyone. There is a name on the prescription. Who wants this prescription? It is very important for everyone to reduce some unnecessary misunderstandings and misleading at this point, otherwise it will easily cause everyone's tangled psychology.

This may happen in a community that has not been unsealed for 48 hours. You happen to be in a key area, a key street town, or a community, and you may need to have a nucleic acid test. At the same time, please note that there are also some residential areas that are not in key areas and may be buildings that need screening. That building may have been tested positive before, and it needs to be tested for nucleic acid again. Both situations exist. Some are located in key areas and some are not, but they fall into buildings after being screened by gridded nucleic acids. I still hope that the general public and friends can understand our present situation clearly with the neighborhood committees and towns, be more patient with everyone and do this work together.