In his opinion, the body in about 1% of the population may not respond effectively or not at all to vaccination.
“The ability to respond to vaccination depends on many factors: on the state of the immune system at the time of vaccination, on the correctness of the immunization technique, on the stability and activity of the vaccine,” he said in an interview with Sputnik radio.
In addition, the doctor recalled people with "immunodeficiency conditions", the number of diseases of which is estimated in the hundreds.
Vikulov named the factors that affect the production of antibodies to coronavirus.
"The production of antibodies can be influenced by the drugs taken, the presence of an exacerbation of certain diseases, and most importantly, a sufficient number of cells that produce these bodies, that is, the presence of a mechanism that ensures the formation and switching of antibodies," added the immunologist.
Earlier, Moscow Mayor Sergei Sobyanin said when mass vaccination against coronavirus infection would begin in the capital.