Researchers from Canada showed that people whose age exceeds 50 years old, produce more antibodies against SARS-COV-2 than young. A previously unknown protective mechanism of scientists appeared in the journal Scientific Reports.
Researchers from the Universities of Laval and Montreal collected blood samples in 32 patients in 14-21 days after their PCR test on COVID-19 was positive. “Everyone who has been infected with coronavirus produced antibodies, however, the elderly their content was great than those under 50 years of age. In addition, antibodies were in the blood even after 16 weeks after diagnosis,” said one of the researchers, Professor Montrealsky University Jean-Francois Masson.
At the same time, the antibodies of the elderly ensured a large defense, they noticed scientists. “It was possible to determine, measuring the ability of antibodies to suppress the interaction of the Delta-option S-protein (Coronavirus – approx.” Tape.ru “) with the ACE2 receptor,” said the author of Joel Pelletier. At the same time, for other SARS-COV-2 options, such a dependence was observed, scientists clarified.
In vaccinated people with the asymptomatic flow of COVID-19, the tutor of antibodies increased twice. In addition, their antibodies were better able to prevent the binding of coronavirus with ACE2. One of the “young” research participants, in contrast to vaccinated, such antibodies were not developed – this, according to scientists, indicates that vaccination increases protection against delta option.