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After suffering a Covid-19 infection, antibodies can remain in the body for six months to a year, our researchers at the Institute for Nuclear Energy Application (INEP) in Belgrade have determined. The results of our research coincide with those from abroad, which refutes the latest thesis that antibodies last three months.
As INEP researcher Dr. Marija Gnjatović explains to “Blic”, the data obtained by our researchers shows that antibodies do not fall short, as was initially believed, when the coronary virus pandemic began.
– Research has shown that antibodies remain in the patients we have been monitoring since March, which means that there is no drastic drop in values and based on that, it can be assumed that the antibodies can be retained for up to a year. But more and more research from abroad confirms the same. From the beginning when the pandemic began, there was constant talk that the antibodies were disappearing rapidly, there was talk of that fall after three months, however, what I assumed happened, and that is that then unreliable tests were used, so Based on the new data, we have information that the antibodies definitely remain after six months and even longer, explains Dr. Gnjatović.
Isidora Stanković, a doctoral student in biomedical sciences in New York, explained that scientists make dice every day about how Covid-19 works, and that scientific work published by experts from the University of Arizona a few days ago brings encouraging news about the creation of antibodies in the human body. manufacture of viruses and vaccines.
– Just this week two important scientific articles were published showing how the virus reacts with our immune system. The first work was carried out by Harvard scientists and shows that when it infects the body, it destroys the first line of defense of our immune system. Our immune system secretes proteins that it uses as signals to tell it that the virus is in the body. In corona, it reacts with proteins and destroys them in up to three ways at the molecular level, something we have not seen before with other viruses, Stanković told H1.
The scientists, he explained, found that antibodies specific to this virus last five to seven months, which they believe this knowledge is important due to the creation of the vaccine, and that the antibodies can last for a year or two, which is encouraging. News.
Dr. Marija Gnjatović, a researcher at INEP, explains that it has been found that patients with a more severe clinical picture produce a greater amount of antibodies, but that this does not apply to everyone.
– A more severe clinical picture causes the formation of a greater amount of antibodies, a milder clinical picture or asymptomatic cases generally have lower antibody values, but this is not the rule and does not apply to 100 percent of patients . So we also have asymptomatic cases without any symptoms that have developed high levels of antibodies. For most patients, for 95 percent of them, a heavier clinical picture will cause a greater amount of antibodies and a lighter picture for a smaller amount, in five percent of the other patients, they will develop in a way different, says Dr. Gnjatović for “Blic”.
After the first wave, the population infection rate was 6.4 percent, and today, when we are in the third wave, it is considered to be around 20 percent.
– This is undoubtedly the third increase in the number of infected, we cannot talk about specific data because it has not yet been collected, but my assumption based on the follow-up of the epidemiological study is that we are around 20%, which is not yet enough to gain herd immunity. Herd immunity probably will not occur before the vaccine enters the market and its application, but the fact is that the population is now going through an infection phase, explains Dr. Gnjatović.
What is the key to Covid-19?
Immunologist prof. Dr. Borislav Kamenov explains for “Blic” that, theoretically, the half-life of antibodies is 21 days, but that it depends on the disease and the duration of the antibodies, because we acquire lifelong immunity to some diseases and not to others, which depends on the chosen fighting mechanism.
– In Covid-19, the key is nonspecific immunity, macrophages, vitamin D, probiotics, and zinc. Children have this non-specific immunity and rarely get sick or easily fight the virus. When it comes to the antibodies themselves, in some people the antibodies last less after illness, in some they last longer, somewhere up to three, five months, maybe in someone even longer, it’s all individual. But it is certainly obvious that this is not the main defense mechanism against the virus, because we have to read what the body tells us. So now that the cold has come, the consumption of vitamins is much higher because diseases are reactivated and then it happens that vitamin D is consumed and people start to have more diseases, so the dose has to be increased compared to before, says Professor Kamenov.
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