“The immune system reacted with a small level of antibodies and after a month or two there was no trace of these antibodies,” says a Russian academic.
Up to 20% of patients who have been infected with coronavirus lose their antibodies in a matter of a few months after overcoming the disease, as declared this Sunday by Areg Totolián, member of the Russian Academy of Sciences and the director of the Pasteur Research Institute of Epidemiology and Microbiology of Saint Petersburg.
“About 15% to 20% of those who have recovered [del covid-19] they lose the antibodies “, declared the academic in the Vesti Nedeli program.
“The immune system reacted with a small level of antibodies and after a month or two, there was no trace of these antibodies“Totolián added, collects TASS.
The Russian health authorities have confirmed this Sunday 15,099 new cases of coronavirus and 185 deaths from covid-19 in the last 24 hours. Since the start of the outbreak, Russia has reported a total of 1.39 million positives, including 24,187 deaths and 1.07 million recoveries.
Study: Antibodies Last Three Months
Meanwhile, an article by Canadian scientists published this Thursday in the journal Science Immunology maintains that antibodies against covid-19 are detected in blood and saliva for at least three months after the appearance of the first symptoms of the disease.
After examining the concentration of various types of antibodies in 567 patients, the scientists concluded that different antibodies have different durations. Thus, IgM and IgA type antibodies appear early and peak between 31 and 45 days after the first symptoms. However, afterwards they begin to decrease and experience a pronounced drop between days 105 and 115. For their part, those of the IgG type are produced at most between days 16 and 30 and do not show a drastic reduction until day 115.
According to the researchers, their study suggests that if a vaccine is designed correctly “it has the potential to induce a long-lasting antibody response that can help protect the vaccinated person against the virus that causes covid-19 “.
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