Health
T cells induced by Covid-19 infection may protect against new mutants: research, world news, top stories
An important element of the immune system, known as T cells, that responds to fight infections from the original version of the Chicago coronavirus also appears to protect against the three most concerned new viral variants. Tuesday.
Several recent studies have shown that certain variants of the coronavirus can weaken the immune defenses from antibodies and vaccines.
However, antibodies that block coronavirus from attaching to human cells may not be able to give the big picture, according to a study by researchers at the National Institute of Allergy and Infectious Diseases (NIAID).
T cells appear to play an important additional protective role.
“Our data and other group results show that the T cell response to Covid-19 in individuals infected with the first viral variant fully recognizes the major new mutants identified in the United Kingdom, South Africa and Brazil. “It looks like it’s doing,” said Dr. Andrew Red of NIAID and the Johns Hopkins University School of Medicine, who led the study.
The researchers analyzed the blood of 30 people who recovered from Covid-19 before the emergence of new, more contagious variants.
From those samples, we identified specific forms of T cells that were active against the virus and investigated how these T cells function against related mutants in South Africa, the United Kingdom, and Brazil. ..
Researchers have found that the T cell response remains largely intact and can recognize virtually all mutations in the mutants studied.
The findings add to previous studies that also suggested that T cell protection appears to remain intact against the mutant.
NIAID researchers said larger studies are needed to confirm the findings.
Dr. Redd said continuous monitoring of mutants that escape protection of both antibodies and T cells is needed.
This treatise has been approved for publication on the Open Forum Infectious Diseases, but has not yet been peer-reviewed.
Reuters
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