There is an opinion that if you become infected with a coronavirus infection from who is sick in a slight form, then you yourself will easily transfer it. We decided to check if such a pattern is confirmed by scientific data.

The idea of the connection between how the carrier of the infection was seriously ill, and what kind of infected the infected will have already led to human victims. According to Pavel Brand, who believed in her, Muscovite went to visit easily sick friends with her children, hoping to get immunity. The question of whether there is such a pattern, was also DEAR Valery Vecorko, chief physician of the metropolitan GKB No. 15.

It is worth noting right away that in the history described above, the Muscovite failed to get immunity. Mother and two children were infected with coronavirus, as a result, the woman died, the children were seriously transferred to the disease. That is, in practice, the idea, at least once, did not work.

It can be assumed that this idea is based on the principles that arose at the very dawn of vaccination. In particular, the method of work of variration from smallpox: a person infected with a weakened virus, as a rule, tolerated the disease easily and was in further resistant to severe forms. According to the same principle acted The first vaccines against measles, epidemic mumps, rubella, chickenpox and girdle lichen. At the same time, living vaccines with a weakened virus had a fairly high percentage of side effects. Therefore, many of them were replaced by vaccines developed using other technologies - for example, by killing the virus. Today widely Used Only one live vaccine is a tuberculosis BCG vaccine.

The course of coronavirus is usually divided into two forms: asymptomatic and symptomatic, which, in turn, is light, moderate and severe. It is worth noting right away that any form can be contagious - even a person who does not have symptoms and does not feel sick can distinguish the virus that is dangerous to others. However, the data about how contagious to asymptomatic carriers vary. By words Maria Van Kerkhov, the technical manager of WHO to respond to the COVID-19, the transfer of the virus “is unlikely”, and according to the model of the spread of the virus created by researchers of American centers for the control and prevention of diseases, to people who have not had symptoms of the disease, It is necessary 59% of all virus programs. At the same time, 24% were absolutely asymptomatic carriage, and 35% demonstrated symptoms of infection after contact. That is, a person with a positive test, but without the symptoms of the disease, cannot be considered safe for others. In this model it was not analyzed how heavily those who picked up the virus from the carrier without symptoms are ill.

Doctors agree that the severity of the disease is not determined by how the infection infected the infection. For example, immunologist Nikolai Kryuchkov speaksthat “the matter is not only in immunity, but also in the viral load that comes from the source of infection. It is determined by the intensity of the release of the virus in the infected, time and proximity of contact with it. Depending on this, a person will receive a different amount of viral particles that will get to him. Further the ball is on the side of the body of the contacting. ” With the opinion of Nikolai Kryuchkov, an explanation of why doctors, having become infected at work, is agreed Sick Heavier, because they received a large viral load. Thus, the longer the sick was next to the carrier, the more intense this communication was (during the conversation more viral particles are released than when breathing), the less the distance between people was, the most likely, the most likely Heavier The course of the disease awaits him.

Being indoors compared to the street on average 18.7 times Raises The risk of getting sick. About a similar pattern speaks And the infectious disease specialist Evgeny Timakov: “It [the severity of the disease] depends on the viral load, that is, on the amount of the virus that fell into the body. If a person is in contact with a person who even transfers him in a slight form can get difficult to get. The fleeting load is viral when we pass by - this is one thing. But if we openly contact and inhale this virus, it is enough to kill us. There is a concept: a lethal dose of the virus. Unfortunately, doctors working in red areas receive this dose. This is a very good lottery: 80% will get ill easily, 20% with heavy outcomes. Accordingly, every fifth person will have a heavy outcome, and one of them will die. ” Valery Vecorko, chief physician of the Filatov hospital, also Refuted The presence of a pattern between the severity of the disease in the one from whom the patient was infected and his own clinical picture: “Nobody can give such guarantees. The way one person is sick does not affect the severity of the disease of another. ”

In addition, when calculating the severity of the disease, the characteristics of the body should be taken into account. There is data showing that patients with diabetes mellitus risk infect Covid-19 10.3 times higher, lack of vitamin B6 Associated with a more severe course of the disease, similar data There is And about vitamin D. Identified Three genes (March, Pign and CCR5), the presence of which increases the risk of infection, enhances the severity of the disease and increases the risk of facing health consequences after recovery. Chronic diseases of different organs, arterial hypertension and excess weight also play a role. In some countries of the Ministry of Health, even Developed Check lists for predicting a more severe course of the disease, based on these factors.

Thus, there are a number of factors by which the severity of the disease can be predicted. However, the fact does not include the fact whether the patient who infected another person was sick is asymptomatic or difficult.