Experts evaluated The Lancet data on complications after revaccination

There is not enough data yet to say with certainty that revaccination against CORONAVIRUS can cause a malfunction in the body's immune system and diseases such as Guillain-Barré syndrome (when a person's immune system attacks their own peripheral nerves), says Larisa, DIRECTOR of the HSE Institute of HEALTH Economics Popovich. She expressed this opinion in a conversation with RBC, commenting on the publication in The Lancet that re-vaccination in certain cases can lead to myocarditis or Guillain-Barré syndrome.

In her opinion, such publications should not be taken seriously yet, since it is not clear how the immune system works with covid-19 .

“I don’t think that this kind of information appeared in the framework of evidence-based medicine. This information needs to be verified. There is an opinion that revaccination is useful, there is an opinion that the vaccine is valid for about a year and the absence of antibodies does not mean anything - cellular memory is important, the formation of trained B-lymphocytes, which at any time will form the necessary antibodies. So far, there is not enough data on how the immune system behaves in general during covid. It is unlikely that publications that revaccination causes disruptions in the immune system, as well as similar ones, should be taken seriously, ”Popovich said.

Popovich recalled that the World Health Organization (WHO) considers it wrong to carry out revaccination until the population of all countries has received at least one dose of the vaccine.

“Someone may not have enough vaccine, and the virus mutates in the meantime, so WHO considers it optimal to direct resources to the first vaccination. As part of this campaign, such publications may occur. The presence of WHO representatives among the authors of the article can also confirm this,” added the director of the HSE Institute of Health Economics.