On February 4th, 65438+65438, Gao Fu, academician of China Academy of Sciences and researcher of Institute of Microbiology of China Academy of Sciences, gave a keynote speech on "Epidemic Prevention and Control under the New Situation".
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It is wrong for Gao Fu to mention "crown phobia", and it is also wrong to underestimate the enemy. Under the current new situation, we should still think about how to prevent and control with a peaceful attitude. Although the pathogenicity is weakened, Omicron is still COVID-19. "Is the Wolf will eat sheep, this is a big ecology. When the virus spreads among people, it may lead to serious illness or death of infected people. "
Gao Fu said that in the past three years, China has made great achievements in scientific prevention and control, which not only minimized the loss of life in China, but also allowed us enough time for vaccine research and development and material preparation. With the adjustment of epidemic policy, new requirements are put forward for us at present.
"We need to see a doctor in an orderly manner. Some young people or mild patients can leave the limited treatment resources of the hospital to the elderly and people with basic diseases without going to the hospital. " Gao Fu said.
Talking about the most critical prevention and control task under the new situation of prevention and control, Gao Fu said that the vaccine should be beaten. "Vaccines can provide four levels of protection, namely, anti-infection, disease prevention, transmission prevention, severe illness prevention and death prevention. At present, 50 kinds of COVID-19 vaccines have been approved for use in China, which is also very rare in human history. In China, there are 13 COVID-19 vaccines approved for marketing or emergency use. I hope everyone will pay attention. "
Extended reading
Interview with Hong Kong expert Liang Zichao: "Asahi Evening" is definitely better than "Asahi Early"
With the promulgation of "Ten Articles of New China", the prevention and control measures of epidemic situation in Chinese mainland have been further optimized, and the development of mutant virus strains, how to strengthen public protection and standardize drug use have attracted much attention. Are the so-called "Cerberus" mutants BQ. 1 and BQ. 1. 1 more toxic? The strains prevalent in the north are more virulent than those in the south? If most people can't avoid being infected, why not "get rid of Owen Engelster early"? Qiu, a reporter from Shenzhen Satellite TV's live broadcast room in Hong Kong, interviewed Liang Zichao, an expert on respiratory system in Hong Kong, and answered relevant hot issues.
Does the so-called "Cerberus" virus need to be worried?
Recently, new mutants named BQ. 1 and BQ. 1 have appeared on the internet, and even the name "Cerberus" is used to render the spread and pathogenicity of this mutant. At present, BQ. 1 and BQ. 1 is spreading in America and Europe. Liang Zichao, a respiratory expert in Hong Kong, told Hong Kong's "Intelligence News" reporter that in the past year, a new branch of the mutant virus has appeared in Omicron, but the difference in antigen changes is relatively small, so the symptoms and immune escape of the mutant virus are relatively local.
Liang Zichao introduced that vaccination is still a good protection for serious diseases. If it is infected, it will still have a good protective effect on the mutant virus for at least 3-6 months, including the popular BQ. 1 and BQ. 1.
Liang Zichao believes that up to now, neither BQ 1. 1 nor XBB virus strains have caused great waves anywhere in the world as when Omicron first appeared, so there is no need to worry too much.
On June 27th, 10, the World Health Organization issued a document saying that the series of Omicron BQ. 1 showed significant growth compared with other series of Omicronya variants, so it is necessary to "closely monitor" them. But so far, the World Health Organization has not released any epidemiological data to show that BQ. 1 series variants will lead to higher severe cases or reduce the effectiveness of existing vaccines. The investigation is still in progress.
Is the virus strain prevalent in the north more virulent than that in the south? Liang Zichao: There is no obvious difference.
Recently, there have been more and more discussions about COVID-19 infection in Chinese mainland. It is suggested that patients with coronary pneumonia in Jingxin have obvious symptoms. Omicron BF.7 mutant is popular in Beijing at present. Some netizens said that compared with the BA.5.2 virus strain prevalent in Guangzhou and other places, the Beijing virus strain is more likely to bring high fever, persistent cough, physical pain and other symptoms. Does this mean that the pathogenicity of different virus strains is obviously different?
Liang Zichao thinks that BF.7 and BA.5.2 belong to Omicron branch, and the antigen difference is relatively small, so there is no obvious difference in pathogenicity. However, the difference between north and south is not entirely due to the difference of virus strains, because the weather in the north, especially recently, is colder and the pollution level is generally more serious than that in the south. Both of these factors may cause disease, which may be more obvious in the north than in the south.
The erroneous view that "Owen was good at English in his early days" is unacceptable.
Live dialogue
With more and more confirmed cases of COVID-19 appearing around, many netizens joked that "the sooner Erwin Engelster is, the better". In this regard, Liang Zichao particularly emphasized to this reporter in Hong Kong that the idea of "early infection is good" is wrong, because if everyone wants to get infected early at the same time, it will easily lead to "tsunami-like" infection and cause a run on medical resources.
Liang Zichao emphasized that in the context of the accelerated spread of the epidemic, everyone should not only be the guardian of their own health, but also the guardian of social responsibility. Liang Zichao explained that although vaccines can protect us from serious harm, it is difficult to completely stop the spread of the virus. With the liberalization of epidemic prevention measures, it is believed that China will soon face the first wave of impact. This happened in New Zealand, Australia and Singapore when they were completely liberalized. In this case, the most important thing is to maintain the stability of the medical system.
The so-called idea that "Erwin Engelster should be early" not only has a negative impact on the spread of the virus in society, but Liang Zichao thinks it may bring harm to everyone's own health. Because the human body's resistance is relative, if it is only exposed to a small amount of virus, it is more likely to appear mild and has no effect on its own body. On the other hand, if it is a high dose exposure, it does not rule out that individuals may induce serious diseases and even acute and necrotizing encephalitis.
Liang Zichao emphasized that if self-protection is done in the process of community transmission of the virus, inhaling a small dose of the virus, especially the virus that has lost its activity, may bring a similar "cardiotonic effect" to the human body, but it is important to control the degree and scope. Once completely "flat", a high dose of the virus may aggravate the condition.
"If you can protect yourself carefully, put on a mask and inhale viruses in small doses, especially some viruses that have been inactive for a period of time, it will not have much impact on our immune system, just like a shot of enhancer, which will not make us have obvious symptoms. This range is very important. When the virus spreads in the community, the last infected person is usually the safest. Even if it is infected at this stage, the problem is relatively small. At this stage, the earlier the infection, the easier it is to expose the dose, which will make the body react more. "
Make long-term preparations Liang Zichao reminded that "returning to normal" does not mean "ending" the epidemic.
According to the experience of other countries, Liang Zichao predicted that the first wave of impact will come about one month after the release of prevention and control measures. According to the experience of the Hong Kong SAR, after about three months, with the gradual emergence of the effect of group immunization, the peak of epidemic spread declined. However, Liang Zichao reminded that China is a vast country, and the epidemic spread stages in different regions are not synchronized. It is necessary to do a good job in the epidemic duration of 3-6 months, so everyone should be psychologically prepared. In addition, "returning to normal" does not mean that the epidemic has passed. In fact, the epidemic is far from over. "Normalization" is to change the defense line from the prevention and control of the whole community to how to protect our medical defense line. Everyone is responsible.
Liang Zichao believes that the adjustment of epidemic prevention and control measures is actually to turn the original prevention and control measures into the responsibility of individuals and enterprises. It is necessary for everyone to take preventive measures, not only to protect themselves, but also to slow down the spread of the virus in the community and avoid the "tsunami outbreak" impacting the medical system.
Regarding the possible impact on medical resources, Liang Zichao suggested that according to the experience of running medical resources in Hong Kong in March and April this year, new patients and non-COVID-19 patients should be treated separately. According to Liang Zichao's analysis, although the mortality rate caused by vaccination in COVID-19 is almost the same as that caused by influenza, the transmission route and virus residue in COVID-19 are far higher than that of influenza virus. This means that COVID-19 is prone to "tsunami-like" spread in some areas where there is no large-scale epidemic, which has affected some high-risk groups.
Liang Zichao: Don't blindly hoard drugs, take a full rest, supplement nutrition, and let the body's resistance work.
Live dialogue
For the confirmed patients in COVID-19 who live at home, Liang Zichao reminded that if you are a young person who has been vaccinated, what really makes you recover is not the medicine, but the body's resistance after a good rest.
As long as you can have a good rest, eat well and supplement nutrition, some minor illnesses can generally be relieved in 2 to 3 days without being overly nervous. Only when the symptoms get worse or last for a long time should you consider seeing a doctor.
Liang Zichao said that the most important thing at present is that everyone should not hoard drugs excessively and not let limited medical resources run away. At the same time, some drugs may have side effects, so it is best to use them safely under the guidance of a doctor.
Author: Qiu Shenzhen Satellite TV Hong Kong News Live Room reporter
Lens: Li Wentao, a reporter from Shenzhen Satellite TV's Hong Kong live broadcast room.