Coronavirus: Antibodies to the common cold may offer protection



Antibodies produced after coronavirus infection of the common cold have been found to attack SARS-CoV-2 and may offer some protection against the pandemic coronavirus. A study published Friday in the leading journal Science reveals that a small proportion of the population, children carry Covid-19 coronavirus-linked antibodies into their blood even though they have never been infected with the virus. SARS-CoV-2 “said in a statement the researchers from the British Institute” Francis Creek “, who collaborated on the study with colleagues at University College London. Cross-action The discovery came almost by chance, during laboratory experiments for antibody test for Covid-19. To assess the reliability of these tests, the researchers performed the test on blood samples from new coronavirus patients and healthy volunteers. Contrary to expectations, some samples from people who had not been exposed to SARS-CoV-2 tested positive. in the antibody test. The surprise finding was confirmed by analyzes of 300 blood samples taken before the current pandemic, 2011-2018. Almost all of these samples contained antibodies that recognize the common cold coronaviruses, which is to be expected since almost all people are exposed to them. However, a small proportion of the samples from healthy volunteers, about 1 in 20, contained antibodies that were cross-reactive with SARS-CoV-2, even if these volunteers did not have a common cold. Such cross-reactive antibodies, which identify cold coronaviruses and SARS-CoV-2, are more commonly detected in children aged 6-16 years, the researchers said. Clarifications “Our findings show that Children are much more likely than adults to have these cross-acting antibodies. “To understand why further studies are needed, it may be related to the fact that children are exposed to other coronaviruses more often than adults,” said Kevin Angie of the Francis Crick Institute, the paper’s first author. explains in part why children are at lower risk of developing severe Covid-19 pneumonia. However, “there is still no evidence that these antibodies prevent Covid-19 infection or the spread of the virus,” says Angie. More data expected now from a large British study examining how different antibodies affect the risk of infection and the severity of the disease. Until recently, scientists believed that antibodies targeting the S2 subunit did not provide However, according to the authors of the new study, these antibodies may eventually prove effective. Combined with the findings of other studies, the discovery may help develop more effective vaccines, or even antibody-based therapies. Follow it on Google News and be the first to know all the newsSee all the latest News from Greece and the World, at



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