The crown can stay on the body for up to three months. A person can carry the coronavirus without really knowing it, without any symptoms of covid, and with a negative PCR test. Serbian researchers had cases of reinfected people, that is, those who have IgM antibodies for several months after the covid, showing that they have a crown. Although coronary reinfections are rare, our experts believe that it is mainly a virus that has remained in the body since the first infection, and not a new one “contracted from the outside”.
Clinical picture
Researchers from the Institute for Nuclear Energy Application (INEP) in Belgrade, which is also concerned with determining the duration of immunity to corona, had subjects who showed IgM antibodies after some time of covidium 19, indicating that the person has a crown. Second, IgG antibodies show that the person has previously had a crown and venous blood is drawn for testing for both. Dr. Marija Gnjatović, a researcher at INEP, affirms that in practice there are cases in which IgM bodies are also detected, showing an acute infection, in those who have suffered covid. He states that this, however, is not a concern because these people do not develop a clinical picture of kovid, at least they do not weigh and are not infectious to the environment. – The virus remains in the body for months after infection and a negative PCR test after treatment does not mean that there are no parts of the virus left in the body, IgM reinfections are rare, but no one can claim that they are impossible. In most cases, however, it is the “second kovid”, that is. reactivation of a virus previously introduced into the body. The body of these people, although the body of IgM is noticed, it fights the virus itself, it does not reproduce, so it is not present in the nose and throat, and they are not infectious to the environment, said Dr. Gnjatović from Novosti. – The virus remains in the body for months after infection and a negative PCR test after treatment does not mean that there are no parts of the virus in the body. IgM reinfections are rare, but no one can claim that they are impossible. In most cases, however, it is the “second kovid”, that is, the reactivation of the virus previously introduced into the body. The body of these people, although the body of IgM is noticed, it fights the virus itself, it does not reproduce, so it is not present in the nose and throat, and they are not infectious to the environment, said Dr. Gnjatović from Novosti.
photo: BETAPHOTO / GOVERNMENT OF SERBIA / SLOBODAN MILJEVIC
Up to 12 weeks
And the PCR test is done from a nasopharyngeal swab, ie. cleans the throat and nose.
Prof. Dr. Jelena Begović, director of the Institute for Molecular Genetics and Genetic Engineering, tells Kurir that the coronavirus can stay in the body for up to 12 weeks. – The coronavirus can be in the body for a long time and after the cessation of symptoms, up to 12 weeks. But at that stage it is no longer dangerous for the carrier or the environment. And the fact that IgM antibodies are shown in someone who has undergone kovid 19 for some time indicates that the virus is still present in the body, that is, there is a process. However, this does not mean that it is contagious. A person who has the corona virus can transmit it for 14 days, such are the experiences, and that is why the 14-day isolation model for people with covid is generally applied in the world. After those two weeks, the virus remains in the body, but it cannot multiply and therefore does not spread throughout the body. Who uses it is not contagious and it is not dangerous for the environment – explains prof. Begovic.
photo: Nemanja Nikolić
The professor also states that reinfection cases are possible and really rare so far, that she believes that in most cases it is about the survival of the virus in the body, but that future studies and research will only show what really It is true. – It has only been a year since the appearance of the first case of SARS-COV-2, and much less since the beginning of the investigation. It is absolutely possible that you will be reinfected with the coronavirus. Only now are there people who have been reinfected, but what percentage of people have actually been reinfected and if that should concern us, the answer will be given by some future studies.
EXCEPTIONAL SEROLOGICAL ANTIGEN AND PCR TESTING
Serological tests, ie. those of the blood for IgM antibodies (shows that the person has a crown) and IgG (shows that the crown was lying down), were excluded from the diagnostic procedure to determine the kovid, and according to the conclusion of the Government of Serbia a few days ago, antigen tests are used in the first step. in order to more quickly determine the diagnosis in dispensaries and kovid reception and triage centers. If the antigen test is positive, the person is calculated to have kovid 19, and if it is negative and the test person has symptoms, a PCR test is performed. Both the antigen and the PCR are performed from swabs.
photo: Shutterstock
COLLECTIVE IMMUNITY ALL THIRD PARTIES UNDER THE AGE OF 19 WERE INFECTED
Before the third and strongest wave of the corona in Serbia, 20.7 percent of the Serbian population gained immunity to the virus, according to the results of the SARS-CoV-2 National Seroprevalence Study, that is, the study on immunity. collective in Serbia, which began on June 26. conducted by the Institute of Epidemiology of the Belgrade Faculty of Medicine with INEP, according to Novosti.
The most resistant to the crown in Serbia are among those under 19 years of age; almost a third (31.8 percent) in this age group have IgG antibodies, that is, naturally acquired immunity from being infected. The most protected are the inhabitants of Kragujevac, Uzice, Cacak, Valjevo, Sabac … The fact that almost a fifth (23.1 percent) in these parts have antibodies, indirectly shows that in the second wave of the epidemic , the crown officially hit harder in Sumadija and the West. Serbia After Šumadija and western Serbia (23.1 percent), southern and eastern Serbia lead in terms of immunity, with 21.8 percent resistant, and Vojvodina with 18.8 percent, while Belgrade it ranks fourth, with 16.9 percent of those developing natural immunity.
The survey was conducted on a representative sample of 1,200 households, or a total of 2,500 respondents.
photo: Courier
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