Virologist Sergei Netesov, professor at Novosibirsk State University, has become one of the main experts in this field since the beginning of the coronavirus pandemic. However, today most of the questions are no longer related to the disease itself, but to vaccination. Many townspeople consider it compulsory to maintain a high level of antibodies to COVID-19 and believe that this is what vaccination is required for, however, Sergei Netesov assures that the level of antibodies in the blood may be completely absent, and this is the norm.
The virologist explains that the level of antibodies after an infection cannot remain constantly high:
"If our level of antibodies remained at the maximum all the time with all the infections we had, then the blood would simply harden."
The main "acquisition" after an illness is not antibodies, but immune memory, which allows, in the event of a new encounter with the causative agent of the disease, to quickly respond to a familiar threat.
“In many cases, a person will not even notice that he has encountered a virus again,” notes Sergei Netesov.
In those who have recovered from any infection, in most cases, such an immune memory develops for a long time and often - for life. However, with the vaccine, things are a little different.
“Those vaccines against coronavirus, which are now being produced in Russia, contain antigens only on the basis of the S-protein, the only viral protein. And if a person is ill, then he has antibodies to all viral proteins, that is, in case of a disease, in theory, a more powerful protective effect occurs."
Sergei Netesov suggests that those who have been ill should have immunity no less strong than from the vaccine, and it is almost certain that it will persist for a longer period. He backs up his opinion with data on extremely rare cases of laboratory-confirmed re-infection of COVID-19. Sergey Viktorovich emphasizes that we are talking about documented cases of the disease, and not about what people sometimes mistake for covid - the symptoms of various viral diseases are sometimes very similar. According to Netesov, only about 30 cases of re-infection have been recorded in the world, and they, as a rule, are associated with some kind of immunodeficiency conditions.
“Now more than 100 million people have been ill, and re-infection has been documented in only 30 people … That is, in fact, this is a very rare probability: one case in 3 million. After all, even the likelihood of getting into a car accident is much greater! " concludes Sergey Netesov.
Earlier in "New Siberia":
Vector refused to supply EpiVacCorona to other countries: not enough
The message Virologist Sergei Netesov explained why antibodies to COVID-19 are not needed in the blood first appeared in New Siberia.