Is It Possible To Get Coronavirus A Second Time

Is It Possible To Get Coronavirus A Second Time
Is It Possible To Get Coronavirus A Second Time

Video: Is It Possible To Get Coronavirus A Second Time

Video: Can You Get Reinfected with Covid? 2022, December
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The answer to the question of whether it is possible to get sick with coronavirus a second time was first received in February 2020. There were reports of re-infection of those who had already been ill in China and a little later in Singapore. Later, explanations were given: if you have already been ill, if there are antibodies, then infection with a variable form of pathology occurred. Different points of view For almost a year, the COVID-19 pandemic has been raging on the planet, and some immunologists and virologists, when answering the question whether it is possible to get sick with coronavirus a second time, still refer to the insufficient data on the behavior of the RNA virus and the formation of immunity to it. Immunologist V. Bolibok is sure that the probability of re-infection with coronavirus is no more than 0.01% if he has already been ill in a mild form. This means that massive re-infection is not expected, but every person who has been ill has risks. V. Bolibok is confident that the human body will maintain immunity in full combat readiness only on condition of constant contact with the source of infection. If antibodies are present, their production will be permanent. Without contact with the virus, human immunity is formed by vaccination. Three vaccines have already been developed in Russia. The first was announced by the Russian leader in August this year. Its mechanism is based on the introduction of a part of the genetic chain of the thorn, which allows the virus to enter the cell. That is, the virus is monitored by the immune system at the moment until the virions entered the cell and began destructive activity inside it. include_poll4974 The Russian Academy of Sciences and the Novosibirsk Research Center announced the creation of two more types of drugs for immunization. A person who does not have special knowledge about viruses, after such a statement, the question may arise: is it possible to get coronavirus a second time if he has already been ill? If antibodies have developed after an illness, it is enough to contact the diseased so that the body constantly produces them. Immunity will only be strong upon contact with the pathogen. In this case, the risk remains, albeit small (0.01%). There are three possible options for why this can happen: Weakening of immunity due to another disease (no matter what etiology): undergoing surgery, pregnancy or age-related changes. The inability of the body to withstand a second attack by a pathogen. Another strain of coronavirus (a new, aggressive one was acting in China). Human resistance to the pathogen brought the protovirus onto the scene, with its asymptomatic course, but the same complications. Self-infection - it is hypothetically possible with a sudden weakening of the immune system. This version is based on the patient's ability to be a source of a pathogen for others for up to 3 months with complete absence of symptoms and excellent laboratory tests. D. Gallagher, BBC Science Observer, presented his views on the issue after reviewing numerous publications. He believes that despite the scarcity of information about the work of immunity in the human body, there is every reason for such a conclusion. Theory based on practical observations The COVID-19 pandemic has raised a number of questions for the global scientific community, for example, is it possible to get the coronavirus a second time two months after cure. But there is still no reliable answer to them. The most common ones are about the possibility of permanent repetition (as in the case of ARVI and influenza virus), re-infection and selectivity of the RNA virus prototype. Some do not get sick, others get severe complications.Some experts are sure that doctors and immunologists do not have an answer to the question of the sufficiency of immunity developed in a disease in a mild or asymptomatic form. The explanations are as follows: The strength of the immune response and its duration depend on the intensity of infection. It takes the human body at least 10 days to develop sufficiently effective antibodies. It is not known for what period and how strong it produces protective antibodies, given that innate immunity in many people is weakened. If the defenses are weak and unable to withstand the destructive activities of the aggressor, re-infection is very likely. The probability is especially strong if it is not the already transferred virus that penetrates into the cells, but the variable virus. The memory of the immune system is selective (for example, for measles or rubella) and it may not "remember" some pathogens after a short time. In order not to get sick (if there was no covid), people are injected with the vaccine, but coronaviruses of the types to which a person is susceptible do not cause memorization. For example, ARVI can be up to several times during the cold season. Professor from England P. Hunter is sure that the answer to the question of whether it is possible to get sick with coronavirus immediately for the second time is positive. The likelihood of a second infection is not due to the developed immunity, but to the ability to remember the pathogen and its duration. Some scientists are skeptical about the likelihood of contracting coronavirus a second time after 3 months and explain the new outbreak by the reactivation of an aggressor lurking in the body. There is another point of view: the imperfection of the testing methodology, which gave a negative answer when the aggressor was still active. It is assumed that there is some kind of partial immunity that allowed a new disease, but already in a non-dangerous form. Most scientists are sure that re-infection can be avoided, even if a person has already had an illness of moderate severity, only by using 2 responses. Among them: congenital, with an unknown degree of activity and unexplored duration; acquired, attacking pathogenic agent even before the moment of its penetration into a living cell. Vaccination is necessary so that a person who is reinfected (after two or three months) does not endanger the heart, lungs, brain or kidneys. A weakened organism always has a chance of getting complications. Results In the world scientific community there is no single point of view on the possibility of re-infection with coronavirus. Some are sure that this is more than plausible, studying the activities of ARVI. Others believe that there is no re-infection, but there is reactivation of the pathogen remaining in the body. Still others claim that infection from another strain of coronavirus is possible. Almost everyone is convinced that a pandemic can only be prevented by creating acquired immunity.

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