MOSCOW, February 22 – RIA Novosti. Those who have undergone the coronavirus should be vaccinated if the level of antibodies in the body drops to the level of the “gray zone”, professor of virology Alexander Chepurnov told RBC about this.
According to him, those who have had COVID-19, in order to understand whether it is necessary to get vaccinated, should control the level of antibodies about once every two months. He also recommended that an antibody test be done immediately after the illness.
“The spread is colossal: in someone after a couple of months, antibodies begin to fade, in someone, I know of cases, after eight months the antibodies are still high,” Chepurnov explained.
The professor noted that it is possible to vaccinate if the level of antibodies decreases to the so-called “gray zone”, when it is between positive and negative values.
“If we live with the coronavirus, we will need to monitor our condition and periodically” pin up “this or that vaccine – since there will be dozens of them in the near future,” he said.
At the same time, Chepurnov added that to “refresh” the primary immunization for those who have had COVID-19, perhaps only one vaccination will be enough.
Earlier, Australian scientists described the evolution of immunity in the four months after infection with COVID-19, finding that although antibody levels drop sharply in the first one to two months, this decline then slows down significantly. The findings show that COVID-19 vaccines should ideally elicit stronger antibody responses than natural infection.
In turn, Austrian scientists, after examining patients who recovered from COVID-19 at the ski resort of Ischgl, which a year ago became one of the epicenters of infection in Europe, found that 70 percent still have immunity.