Since the beginning of the coronavirus pandemic, scientists have been trying to find out why a very small number of people are essentially immune to the coronavirus. Unfortunately the answers are not easy to find, although there are many theories.
People who are not infected with the coronavirus are called resistant or those who can resist. If antibodies without symptoms are found in the blood of a person who has had the corona virus, these are not produced into real resistors. Unfortunately, resistors cannot be easily identified at the moment, because nowadays people often suffer from corona without symptoms. It is therefore necessary to distinguish between those who have suffered from the disease without realizing it and the truly resistant.
Pärt Peterson, professor of molecular immunology at the University of Tartu, noted that, according to tracking studies conducted by the university so far, around 95% of people have antibodies. Many unvaccinated people who think they are not infected have actually contracted the disease. However, scientists are still unable to say exactly why some people are resistant.
“We should distinguish between those who are true resistant, who are not infected at all, and those who have gone through the disease without symptoms. I fear that there are very few true resistant. In most cases, it is probably some kind of resistance The mutation genetics that somehow interfere with their normal life does not interfere, but helps prevent coronavirus infection,” Peterson said.
From the history of infectious diseases it is known that some people are not infected, for example with the HIV virus. Scientists discovered a long time ago that it is caused by a specific genetic mutation. Unfortunately, in the case of corona, no such mutation has been found, even though it has been sought for years now.
Peterson suggests that it may not be a single specific mutation, but that a person can become resistant due to the combined effect of a whole host of different factors: “It may not be a single mutation, but some sort of set of genetic variants that have an effect.”
At the same time, the professor emphasized that there are different types of coronaviruses. Many of them were in circulation long before the appearance of Sars-Cov-2. Therefore, previous exposure to other coronaviruses may also play a role in the development of cellular immunity against the coronavirus.
If a person suspects he is resistant, because to his knowledge he has never had the corona virus, nor has he been vaccinated, he can take an antibody test. If the antibodies are present, he will still have had corona at some point. If there are no antibodies, but the person has repeatedly come into contact with the virus, they may be resistant.
2023-12-11 10:30:00
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