Zhang Wenhong: The most effective drug is immunity! Do 3 points during the war epidemic, and your immunity will naturally be strong
Is there anyone who is naturally immune to the COVID-19 virus?
As we all know, the infection rate and transmission rate of the COVID-19 virus are very strong. If a largely healthy person comes into contact with a COVID-19 patient, it is very likely to be infected, but scientists have discovered the "chosen child" - no matter what How to be exposed to the COVID-19 virus and not get COVID-19.
Greek flight attendant Angeliki Kaoukaki is this "chosen child". She had been in contact with a COVID-19-positive crew member at the beginning of the COVID-19 epidemic , but was not infected .
Later, her partner was also diagnosed with a severe case of COVID-19. The two were isolated in a studio apartment for 14 days, but her test result was still negative.
Later, after her partner recovered, she was unfortunately recruited again. After being isolated together for several days, Kaoukaki was still not sick.
Is anyone really immune to the COVID-19 virus?
To find out, immunologist Evangelos Andreakos has been looking for specific genetic variants, and eventually found that there are as many as 5,000 people with similar experiences to Kaoukaki .
In this regard, scientists speculate that if some people are repeatedly exposed to the COVID-19 virus but not infected, it means that they may carry a resistance mutation that can resist the virus.
1. Why do some people not get COVID-19?
As of today, there have been 1,942,240 confirmed cases in China, which is enough to prove how high the infection rate of the COVID-19 virus is. Why do some people escape the "poisonous mouth" of COVID-19?
A company called Open Orphan conducted a study last year in which 36 healthy young adults were exposed to the COVID-19 virus and then spent 17 days alone in a hospital room.
And one of the volunteers, named Paine, during this period, no matter who the patient was in contact with, was safe .
Researchers speculate that it may be related to genes. About 10% of COVID-19 patients have natural resistance to the COVID-19 virus. They can help us identify the virus in our body and start attacking and eliminating the virus before it enters the body.
In addition, a study published in the 2020 Journal of the American Medical Association (JAMA) found that there are 2 types of people with relatively low rates of COVID-19 infection:
One is children , less than 2% of confirmed cases, because children have lower levels of ACE2 gene expression than adults, and this gene expression level may be related to our susceptibility to COVID-19;
The second is smokers . Studies have found that smokers have high levels of ACE2 in their lungs and are more likely to suffer from severe COVID-19, and smoking cessation may reduce the risk of severe COVID-19 infection.
Similarly, previous studies at Imperial College London have shown that some people will not be infected with SARS-CoV-2 even if they are exposed to SARS-CoV-2. It may be that people have been infected with other types of coronaviruses before , and the induced cross-reactive T cells can Protect the human body from COVID-19 virus infection.
For example, among the viruses that cause colds in humans, some of them are coronaviruses, which may mean that colds can help reduce COVID-19 infections .
But in any case, there is still no definite answer as to why this part of the "chosen children" will not be infected with COVID-19, and we still need to continue to explore in the future, and what we can do now is to do a good job of COVID-19 Protect yourself and look forward to the day when the COVID-19 virus is conquered.
2. What happened to those who were infected with COVID-19?
The most worrying thing about contracting COVID-19 is the appearance of sequelae. How long will the sequelae last? Can it recover?
Recently, "Nature Communications" published a study conducted by Imperial College London in the United Kingdom, which surveyed more than 600,000 people through random sampling.
The results showed that 3 months after the first symptoms appeared, some people still had one symptom , including fatigue, chest pain, chest tightness, fever, palpitations, malfunction of smell, malfunction of taste, dyspnea, rash, joint pain or swelling, etc.
It can be seen that after infection with COVID-19, the impact on patients is still obvious. In order to reduce the risk of infection, as well as the clinical severity, it is recommended that everyone be actively vaccinated against COVID-19.
A study published in the Weekly Report of the Chinese Center for Disease Control and Prevention (English) showed that vaccination against COVID-19 can reduce the risk of pneumonia caused by delta mutants by 50%-70%. If a booster shot is given, the effect will be more obvious , the risk can be reduced by 86%.
At the same time, after vaccination, the risk of severe illness in adults will also be reduced by 70%-80 %.
3. How to prevent COVID-19? Immunity is "the best doctor"
Professor Zhang Wenhong, director of the Department of Infectious Diseases of Huashan Hospital Affiliated to Fudan University, once said: "Immunity is a special medicine for anti-epidemic and disease prevention." This also applies to COVID-19 protection.
Infections or infectious diseases that everyone usually refers to actually refer to the entry of pathogenic microorganisms into the body, and the body is not enough to fight and "falls ill". COVID-19 is a typical example.
If the body wants to truly remove the COVID-19 virus, the body's immunity plays an important role. The stronger the immunity, the greater the chance of "defeating" the COVID-19 virus .
Therefore, if you want to prevent COVID-19, you must also pay attention to protecting your immunity, especially people who lack sleep, don’t like to walk, don’t like to drink water, smoke second-hand smoke, abuse antibiotics, and have a cold relationship between husband and wife .
If you are prone to fatigue, lack of energy, more frequent colds, and slower wound healing, you should be alert to the decline in your immunity, and find ways to improve your immunity in time to prevent diseases from coming to your door.
So how to effectively improve the body's immunity, there are 3 suggestions to listen to:
1. Supplemental protein
Protein is a major material basis for the formation of antibodies, so if you want to improve immunity, it is naturally indispensable. It is recommended that you eat more protein-rich foods such as eggs, milk, soybeans, fish, shrimp, lean meat, etc., pay attention to reasonable match.
2. Adhere to a healthy lifestyle
Including staying away from tobacco and alcohol, eating more fresh fruits and vegetables, and eating less pickled, fried, and processed foods; regular three meals a day, a balanced diet, not staying up late, etc., to develop a good living habit is also very important to protect the body's immunity a ring.
3. Actively participate in physical exercise
Regular exercise can promote metabolism, improve immunity, and enhance physical fitness. The best exercise to improve the body's immunity is to do moderate-intensity exercise at least 5 times a week, 30 to 45 minutes at a time, for more than 4 weeks.
Summary: Some people are indeed immune to the COVID-19 virus, but this is only a small number of people, so for the public, those who should be protected should still be protected and not taken lightly, so as to avoid the impact of COVID-19 on us. health impacts.
References:
[1] "What happened to those infected with COVID-19?" UK study reveals data of 600,000 people". Health Times. 2022-04-29
[2] "Why won't someone get COVID-19? Scientists recruited 36 people for testing, and the results were shocking! 》. Canadian Daily News. 2022-04-07
[3] "Diseases are looking for people with poor immunity, today tell you how to improve immunity? 》. Cancer Hospital of Chinese Academy of Medical Sciences. 2021-02-25
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