Zhang Wenhong: The most effective drug is immunity! During the war epidemic, do 3 points well, and your immunity will be naturally strong
Are there people who are 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. To a large extent, healthy people are likely to be infected if they come into contact with COVID-19 patients. How did you come into contact with the COVID-19 virus and did not get COVID-19.
Greek stewardess Angeliki Kaoukaki is the "chosen son". At the beginning of the COVID-19 pandemic, she had contact with the COVID-19 positive flight crew, but was not infected .
Later, her partner was also diagnosed as a severely ill patient with COVID-19. The two were quarantined 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 several days of isolation together, Kaoukaki still did not get sick.
Are there really people who are naturally immune to the COVID-19 virus?
To find out, immunologist Evangelos Andreakos has been looking for specific genetic mutations, and finally found that there are as many as 5,000 people who have experienced similar experiences to Kaoukaki .
In this regard, scientists speculate that if some people are repeatedly exposed to the COVID-19 virus but are not infected, it means that they may carry a resistance mutation that can fight the virus.
1. Why are some people not infected with COVID-19?
As of today, a total of 1,942,240 cases have been diagnosed in China, which is enough to prove how high the infection rate of the COVID-19 virus is. Why do some people escape the "poison" 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 lived alone in a hospital room for 17 days.
And one of the volunteers named Paine was safe and sound no matter what patients he came into contact with during this period .
Researchers speculate that it may be related to genes. About 10% of COVID-19 virus patients have natural resistance to COVID-19 virus in their bodies. They can help us identify the virus in the body, attack and clear the virus before it enters the body.
In addition, a study published in the Journal of the American Medical Association (JAMA) in 2020 found that there are 2 types of people with relatively low rates of COVID-19 infection:
One is children , which account for 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 susceptible to severe COVID-19, and quitting smoking 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 the virus even if they are exposed to SARS-CoV-2. It may be that people have been infected with other types of coronavirus 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 belong to coronaviruses, which may mean that colds help reduce COVID-19 infections .
But in any case, there is still no definite answer to why this part of the "chosen child" 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 overcome.
2. What happened to those who were infected with COVID-19?
For the infection of COVID-19, the most worrying thing is the emergence of sequelae. How long will the sequelae last? Can it be recovered?
Recently, "Nature Communications" published a study conducted by Imperial College London, which surveyed more than 600,000 people through random sampling.
The results found that: 3 months after the first symptom appeared, some people still had 1 symptom , including fatigue, chest pain, chest tightness, fever, palpitations, smell malfunction, taste malfunction, dyspnea, rash, joint pain or swelling etc.
It can be seen that after being infected with COVID-19, the impact on patients is still obvious. In order to reduce the risk of infection and the clinical severity, it is recommended that everyone be actively vaccinated against COVID-19.
A study published in the "Chinese Center for Disease Control and Prevention Weekly (English)" showed that vaccination of COVID-19 can reduce the risk of pneumonia caused by delta variant infection by 50%-70%, and the effect is more obvious if the booster injection is given , 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% , such as booster injections, the risk of severe illness will be reduced by 91%-98%.
3. How to prevent COVID-19? Immunity is the "best doctor"
Professor Zhang Wenhong, Director of the Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, once said: "Immunity is a special medicine for fighting epidemics and diseases." This also applies to COVID-19 protection.
The infection or infectious disease that everyone usually mentions actually means that pathogenic microorganisms enter the body, and the body is not strong enough to fight it and "falls ill". COVID-19 is a typical example.
In order for the body to truly eliminate the COVID-19 virus, the body's immunity plays an important role. With strong immunity, the chances of "defeating" the COVID-19 virus will be greater .
Therefore, if you want to prevent COVID-19, you must also pay attention to protecting your immunity, especially those who lack sleep, do not like to walk, do not like to drink water, smoke second-hand smoke, abuse antibiotics, and have a cold relationship between husband and wife , etc., are more likely to lack immunity.
If you experience fatigue, low spirits, more frequent colds, and slower wound healing, you must be alert to the decline in immunity and find ways to improve immunity in time to prevent diseases from coming to your door.
So how to effectively improve the body's immunity, here are 3 suggestions:
1. Supplement protein
Protein is a major material basis for the formation of antibodies, so if you want to improve your immunity, it is naturally indispensable. It is recommended that you eat more protein-rich foods such as eggs, milk, soybeans, fish, shrimp, and lean meat. collocation.
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 meals, a balanced diet, and not staying up late, etc. Developing a good living habit is also very important for protecting the body's immunity part of the
3. Actively participate in physical exercise
Regular exercise can promote metabolism, enhance immunity, and enhance physical fitness. The best exercise to improve the body's immunity is recommended to do moderate-intensity exercise at least 5 times a week, 30-45 minutes at a time, and persist 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 general public, what should be protected should still be protected, and we should not take it lightly, so as to avoid the impact of COVID-19 on us health impact.
References:
[1] "What about those infected with COVID-19?" British research data reveals 600,000 people". Health Times. 2022-04-29
[2] "Why Don't Some People Get COVID-19?" Scientists recruited 36 people to test, and the results were shocking! ". Canadian Life. 2022-04-07
[3] "Diseases look for people with poor immunity, today tell you how to improve immunity?" ". Cancer Hospital, Chinese Academy of Medical Sciences. 2021-02-25
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