Why some people would die in infection and for some other person the same virus means nothing?
The reason why somebody would die to some infection, somebody would face weak symptoms and somebody would have no symptoms at all is the thing, that always causes discussions. The answer would be getting by using intensive research, and the results can be waiting for even years.
So here is a couple of hypotheses, why somebody will get an infection and die for that thing. And for some other persons, the same infection might not even cause symptoms to some other individuals. There are four main possibilities, which are making that thing.
1) A person has got the infection of a similar virus before the main epidemic. This thing can be uncovered by testing the antibodies of viruses from the blood.
2) The person would have some genome, which limits the infection of a certain type of virus. This thing can find out by testing genomes of the people, who have been in the epidemic area and survived without symptoms.
That kind of thing can be made by searching similar sequences from the genomes of the people, who are survived those areas without symptoms. And the major problem is in the selection of the people for those tests, and the confirmation of the possibility of the existence of the genetic resistance or immunity against the virus can take years.
3) The person has infected by so few viruses, that they are caused by natural immunity. This is the so-called "Black Swan" hypothesis, which has a very low probability, but what is possible.
4) A person has not been exposed to the virus, and that's why there would be the symptoms. This can happen also in highly infected areas, that somebody is lucky. This causes that the genetic tests would be done for nothing, and there would not be resistant people, whose immunity against viruses causes by the genetic reasons or some kind of pre-infections.
The reason for that thing is unknown, but things like genetic differences between individual people and medicals cause that there is a difference in the effects of the microbes. In that case, some people would infect easier than others.
But of course, the genomes have not explained the entirety of this kind of case, where somebody would stay healthy and some other dies in the same infection, what is causing the same microbe like coronavirus. Another explanation is that the person is infected by a similar virus, which has the same core antigen, but the lower ability to cause infections.
The third explanation is that the infection causes so few viruses, that they would act as a vaccine. But there is very small evidence about that kind of case, so that thing is only theory, but it's possible in the limits of the probability. And the thing is that this would happen to some person who has an extremely small probability.
The thing, that might cause immunity against the disease is that a person has got infection before the main epidemics. So, in this case, the reason for avoiding the infection is that a person would be that person would get natural resistance against the virus. That person might be thought that the coronavirus is some kind of flu, and stayed at home. That means that this patient self might think that the coronavirus would be the only the tough flu virus and that's it, and that means this person would not even know that the paralyzing the chest would be near.
How to research things, what might cause death to epidemics?
When we are thinking about the deaths, we must realize that those things can cause also for some other reasons, and the virus would be only the last and final point, which sealed the fate of the patient. There is a possibility that some of those dead people would have medicals what mission is to deny the reaction of the immune defense or decreasing the effect of the immune cells can be caused by the HIV-infections. So that means that those things could be behind the deaths.
But when we are researching those things, we must test the HIV and medicals from the bodies. Then the other symptoms must be found, and then the DNA-sample would be taken. If there are some simultaneously repeating sequences in the DNA molecules, that would give the key to the genetic hypothesis, that some people would be in the danger zone because of their genomes.
And if there are people who would not get the disease, the genomes can tell, if there are people, who are immune against those viruses. But immunity can advantage by the simple that person has been infected sometimes before the main epidemics. The thing is that nobody even knows how long the virus has been in the human population.
So the thing that research must do is to test the antibodies from the blood samples of the people, who seem to be resistant against viruses. But the thing is that the reason that the person would not get symptoms might a person have not just faced the infected person. And the thing that answers that mystery is effective research.
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