Virologists evaluate scientists' findings on complications after COVID-19 vaccines

The use of mRNA vaccines from Pfizer, Moderna and ASTRAZENECA leads to an increased risk of disease, according to a large-scale study by scientists. RBC asked virologists to evaluate these findings

The results of the study that CORONAVIRUS vaccines such as Pfizer, Moderna and AstraZeneca could subsequently affect neurological, circulatory and cardiovascular complications were to be expected, virologists interviewed told RBC.

This is how they commented on a large-scale study on the use of mRNA vaccines and their consequences for the HEALTH of vaccinated people. According to the work, vaccines that protect against severe covid-19 disease were associated with a higher risk of heart inflammation, an increased risk of blood clots in the brain after immunization and the risk of Guillain-Barré syndrome, a neurological disorder, BLOOMBERG wrote .

Such conclusions were to be expected, the DIRECTOR of the Research Center for Electronic Mathematics and Mathematics told RBC. Gamaleya Alexander Gintsburg. According to him, this is due to the fact that the Pfizer and Moderna vaccines, made on the mRNA platform, are perceived by the body as foreign information. “Messenger RNA, when it is introduced into the human body , due to the evolutionary characteristics of our cells, is perceived as foreign information, viral, which must be destroyed,” said Gunzburg.

According to the studies described by the scientist, the occurrence of myelitis and myocarditis in the group of vaccinated people far exceeded the occurrence of the same complications that occur in control groups that did not receive these vaccines.

However, according to Sergei Voznesensky, associate professor of the Department of Infectious Diseases at RUDN University, the research conducted is still not enough to establish a reliable relationship between mRNA vaccines and subsequent complications.

“The youngest mRNA vaccine platform. We don’t have enough data from this platform that would be obtained on a wide scale, over a long time interval, so there are a lot of all sorts of reports, both single and multiple cases of complications that may be associated with this platform. Including the development of myocarditis, including the development of vascular complications or even sudden death in elderly patients. These platforms require further study with a long observation interval after vaccinations,” explained Voznesensky.

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The virologist also noted that in relation to AstraZeneca, several cases of sudden death, complications from the vascular system, and complications from the NERVOUS SYSTEM have been described.

“Our Sputnik V vaccine is based on human adenovirus, and therefore such complications after the use of vaccines were not recorded in registration studies,” Voznesensky concluded.

His opinion is confirmed by Alexander Ginzburg: “As for the Sputnik V vaccine, which is in the third phase of clinical trials, the number of these complications and any other side complications did not exceed the control level, that is, the number of these complications that usually occur without vaccination "

That mRNA vaccines could lead to further complications was reported back in 2021, during the coronavirus pandemic. Thus, the European Medicines Agency (EMA) reported that on the continent there were 30 cases of thromboembolism among 5 million people who received an injection of the AstraZeneca vaccine. After this, a number of countries, including Norway, Denmark, Estonia, Iceland and Bulgaria, refused to use this vaccine. AstraZeneca itself has stated that there is no evidence of an increased risk of blood clots from the drug it created.

At the same time, the US  regulator, the US Food and Drug Administration (FDA), indicated that the Pfizer/BioNTech and Moderna vaccines suggest an increased risk of myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the tissue surrounding the heart) after vaccination .