Immunologist Kryuchkov spoke about two options in which an increase in the number of antibodies occurs the level of antibodies to coronavirus in the blood. According to him, after vaccination or illness, their level is maximum, but over time begins to decrease.
The specialist explained that the highest concentration of antibodies usually forms some time after the introduction of the vaccine, or the previous illness, after which their decline occurs. In the case when after this the test reveals another increase in the number of antibodies, one of two options is possible, the doctor emphasized.
“If there was a slight increase in IgG or IgM antibodies, then, most likely, we are talking about the fact that the measurement was carried out by different test systems to determine the amount of antibodies in the blood plasma. In addition, one must not forget that each test has an error, and there are also individual fluctuations. This all overlaps and can give an increased level of antibodies “, – said the doctor.
For a significant increase in the number of antibodies – more than twofold – there is another explanation. A serious jump in the number of antibodies most likely means a meeting with an infection, the immunologist said. He added that in some cases this is practically the only sign of new contact with the virus. He explained that half of the cases of infection are asymptomatic, in which case the body and the immune system react, but the person has no clinical manifestations.
Earlier, the director of the National Research Center for Epidemiology and Microbiology named after N.F. Gamaleya Alexander Gintsburg said that vaccination against coronavirus should be included in the national immunization schedule. He stated that the pandemic will end when 70-75 percent of the world's population is vaccinated against COVID-19.