How does Guangdong control the epidemic?

How does Guangdong control the epidemic? How to deal with mutant viruses? Headquarters reporter in dialogue with Zhong Nanshan

How does Guangdong control the epidemic? How to deal with mutant viruses? Headquarters reporters have a dialogue with Zhong Nanshan How can Guangdong control the epidemic? How to deal with mutant viruses? Headquarters reporter in dialogue with Zhong Nanshan

How to judge the current local epidemic situation in Guangdong? What good experiences does Guangdong have in dealing with the first community transmission of Delta mutant strains in China? Regarding vaccination, should the vaccination work for minors and the elderly be accelerated? On June 25, the headquarter reporters had a dialogue with Academician Zhong Nanshan and made the latest research and judgment on the new crown pneumonia epidemic
.

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In order to reduce the risk of the spread of the epidemic, Guangdong has adopted the most stringent control measures to prevent the spread of the epidemic

In order to reduce the risk of the spread of the epidemic, Guangdong has adopted the most stringent control measures to prevent the spread of the epidemic

Academician Zhong Nanshan, academician of theChinese Academy of Engineering and director of the National Respiratory Diseases Clinical Medicine Research Center, said that in response to the epidemic, Guangzhou has responded to the epidemic in China by quickly identifying the source of infection, accurately identifying the transmission chain, and updating the concept of "tight connection".
In the first phase of the "epidemic" of the Delta variant virus community infection, phased results have been achieved
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Fellow Fellow

Zhong Nanshan, academician of theChinese Academy of Engineering and director of the National Respiratory Diseases Clinical Medicine Research Center:

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First, the source of infection was quickly identified, and the chain of transmission was quickly identified in Guangzhou.
On May 21, because the provinces, autonomous regions, and municipalities also received reports, the source of infection was identified in the afternoon of the same day
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Subsequent high-quality epidemiological investigations, the epidemiological investigations were very timely.

Second, corresponding to the Delta strain, we used to talk about close contacts, and this concept has to be changed
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Because of the high load of the Delta strain, the exhaled gas is highly toxic and highly infectious

During the quarantine period, there is no need to increase the quarantine time, and the frequency of nucleic acid testing should be increased.

During the quarantine period, there is no need to increase the quarantine time, and the frequency of nucleic acid testing should be increased.

Regarding the question of whether the delta variant virus has a longer incubation period and whether immigrants should increase the isolation time and strengthen the isolation management, academician Zhong Nanshan also said that it is not necessary
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Academician of the Chinese Academy of Engineering Zhong Nanshan, Director of the National Respiratory Diseases Clinical Medicine Research Center: I don't think there will be more
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Because in general, most of the incubation period is not long, and a very small number of incubation periods are long.

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Guangzhou will build 5,000 independent space international health stations

Guangzhou will build 5,000 independent space international health stations

Regarding the prevention and control of the next epidemic, Academician Zhong Nanshan said that for the possible re-emergence of Delta variant virus infection, due to its extremely high infection intensity, the hospital's fever clinics should strengthen control measures and the isolation places should be more standardized
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Academician of the Chinese Academy of Engineering Zhong Nanshan, Director of the National Respiratory Diseases Clinical Medicine Research Center: As the infection intensity of the Delta variant virus is very high, strict control measures should be adopted in fever clinics in hospitals
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There are not too many hospitals in most cities across the country that really meet the specifications of fever clinics: independent buildings, 20 meters away from other buildings.

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Although some high-incidence areas in Guangzhou have adopted the entire area to be isolated in hotels, this has solved many problems, but ordinary hotels are not qualified as isolated hotels
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Probably more than 80% of the country's tourists, and even close to 90% of foreign tourists are here

At present, the commonly used domestic vaccines are still effective against delta mutant strains, everyone should fight

At present, the commonly used domestic vaccines are still effective against delta mutant strains, everyone should fight

Academician Zhong Nanshan also pointed out: "At present, the commonly used domestic vaccines are still effective against the delta mutant strain, and everyone should fight it
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Minors and the elderly should speed up vaccination

Minors and the elderly should speed up vaccination

Academician Zhong Nanshan said in an interview about the current epidemic: In the spread of the delta mutant strain, the main and severe patients are mostly the elderly, but there are also children
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Therefore, these two groups of people should be vaccinated

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CCTV reporter Chen Xuting:

After this round of the epidemic, do you think that in groups such as minors and the elderly, should the vaccination be accelerated?

Zhong Nanshan, academician of the Chinese Academy of Engineering and director of the National Respiratory Diseases Clinical Medicine Research Center:

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The elderly should be particularly strengthened, because a lot of previous studies were done abroad, many abroad for faster, the elderly have little progress, this information is not enough to support the safety of our elderly vaccination
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Therefore, the elderly were not mentioned in the indications at that time

CCTV reporter Chen Xuting:

Currently, there are three vaccines on the market.
Do you have any suggestions on the vaccination options for minors and the elderly?

Zhong Nanshan, academician of the Chinese Academy of Engineering and director of the National Respiratory Diseases Clinical Medicine Research Center:

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It is impossible to make an absolute head-to-head comparison, so an absolute conclusion cannot be drawn
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But now it seems that if more than 90% of the vaccines are inactivated with whole virus in China, it is now proved that its biggest advantage is that it is relatively safe and has few side effects;

Secondly, it has a definite protective effect, especially after checking the delta strain.
From the laboratory data and from more than 160 limited data in Guangzhou, it is found that the close contacts have been vaccinated, and the vaccination has been completed.
There is no vaccine for the whole process.
Its protective effect can be seen.
It has a protective effect.
It has a protective effect of more than 60% against infections and close to 80% of severe cases
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Therefore, this should be considered safe to inoculate a vaccine with inactivated whole virus
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As for others, such as subunit protein vaccines and adenovirus vaccines, it will take some time to accumulate more information before we can have a clear view
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CCTV reporter Chen Xuting:

After we finish the vaccine, if it is said that after six months or after a certain period of time, the antibody drops or the antibody is not so strong, does it prove that the vaccine has failed?

Zhong Nanshan, academician of the Chinese Academy of Engineering and director of the National Respiratory Diseases Clinical Medicine Research Center:

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It is difficult to draw conclusions at present
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Antibody is only one of the indicators, proving that it serves as humoral immunity
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There are generally two types of immune functions, one is called humoral immunity, the other is called cellular immunity, and of course some are called memory immunity and so on
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Well, since it is only a part of humoral immunity, if the titer of the antibody drops, it does not completely mean that its protective function has disappeared.
Therefore, it is not enough to use antibodies as the only indicator
.
We are now discussing the functional indicators including humoral immunity, cellular immunity, cellular memory, etc.
, to illustrate the protective effect of a certain vaccine
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Focus on the new crown pneumonia epidemic