A man has been vaccinated against Covid 217 times in just two years

Based on a series of blood tests, which the vaccine regulator conducted relatively regularly since 2019, and on tests conducted in FAU laboratories, the conclusion is that Repeated vaccination has no effect The only change in their immune system is an increase in the concentration of defense cells against coronavirus and the level of antibodies in the blood. The Fau team reads these results as proof that great endurance of the body for vaccines, but it also advises against over-vaccination and warns that it is not possible to draw conclusions from a single individual for the entire population.

At present it is not clear what effect this will have over vaccination In the immune system. Some scientists speculate that the effects of habit may cause immune cells to become less effective. However, this is not the case for the affected person. The FAU report, also published in the specialist journal The Lancet, says, “Certain immune cells and antibodies against SARS-CoV-2 are significantly more common in your body than in people who received only three vaccines Are.”

“We found out about this person through newspaper articles,” said Dr. Kilian Schöber, professor at the Microbiological Institute, “then we contacted him and invited him to undergo a series of tests in Erlangen.” “He was very interested and agreed to cooperate.”

Through so-called antigens, the immune system learns to recognize the actual pathogen in the event of a subsequent infection, allowing the body to respond faster and more effectively. But what happens when the body’s own immune system is exposed to too much of a specific antigen? experts ask. “It could be a case of a chronic infection, like HIV or hepatitis B, that keeps coming back,” Schauber adds, “There is evidence that certain types of immune cells, T cells, become tired and release less messenger substances. Are.” Swelling. These and other effects of habit can weaken the immune response.

follow up

The study on this topic, in which researchers from Munich and Vienna also participated, shows that this is not always the case. “In recent years, patients have had to undergo various blood tests more frequently,” explains Schauber, “with their permission we were able to evaluate the results of these analyses, in some cases even freezing samples that we ourselves We were able to investigate. We also had the opportunity to take blood samples when the subject was vaccinated again and voluntarily during the study. From these samples, we were able to understand direct response of the immune system For vaccination. The result was that the test subjects had large numbers of so-called effector T cells against SARS-CoV-2. “So to speak, these are the body’s own soldiers that are fighting the virus,” the expert explains, “and their number was even higher than a comparison group of people who had been vaccinated three times.”

“Typically occurs when someone is vaccinated who already has many antibodies in their blood.” nothing happens”, explains immunologist Andreas Radbruch, President of the European Federation of Immunological Societies (EFIS), who was not at all surprised by the results of this study, “The vaccine is blocked by antibodies before it can trigger an immune response and, “once “Once a certain concentration of antibodies is reached, the immune system shuts down and new antibodies are no longer produced.” This means that those who have sufficient antibodies cannot increase protection by getting more and more vaccines, Radbruch explains, “However, vaccination side effects may reappear, even if there is no longer a specific immune response. And that can be unpleasant.