Recovered COVID-19 patients to fight coronavirus by their developed immune system to fight coronavirus the research published in the journal Nature anticipated.
Recovered COVID-19 patients may fight coronavirus
According to a study the immune system develops long after the infection and can block even mutated variants of the virus.
People who heal from COVID-19 are shielded against the novel coronavirus for at least six months, and likely even longer.
The research, published in the journal Nature, indicated that immune cells develop antibodies that continue to evolve, evidently due to repeated exposure to the remnants of the virus concealed in the gut tissue.
The research’s “strongest evidence”
The research offers the “strongest evidence yet” that the immune system “remembers” the virus and, surprisingly, manages to increase the production of antibodies even after the infection has deteriorated, as per scientists, including those from Rockefeller University in the U.S.
They presume that the approach will be both easier and more successful when recovering patients next experience the virus, avoiding reinfection.
Immune System to fight against COVID-19
Michel C. Nussenzweig, a co-author of the study from Rockefeller University says, “This is really exciting news. The type of immune response we see here could potentially protect for quite some time, by enabling the body to mount a rapid and effective response to the virus upon re-exposure.”
Although coronavirus antibodies persist in the blood plasma over several weeks or months, previous research found that their levels decrease dramatically over time.
The researchers finding
The researchers found, however, that rather than producing antibodies all the time, the immune system produces memory B cells that identify the coronavirus and, when they experience it a second time, rapidly-produce a new round of antibodies.
But since novel coronavirus recreates in the lungs, upper throat, and small intestine cells, they believe that the development of memory B cells may be driven by latent viral particles concealed inside these tissues.
The scientists analysed the antibody responses of 87 individuals in the present sample at two-time intervals, one month after diagnosis, and then six months later afterwards.
While antibodies were still noticeable by the six months, their numbers had declined significantly, with laboratory tests demonstrating that the potential of the plasma samples of the participants to nullify the virus had declined by five times.
The researchers observed that the memory B cells of the patients, especially those that generate coronavirus antibodies, did not reduce in number.
In certain cases, these cells have risen dramatically, the report observed. And after the infection was solved, the researchers have observed that the memory B cells had passed through many rounds of mutation.
As a consequence, antibodies developed were much more powerful than the originals the study reported.
These antibodies were perfectly positioned to cling closely to the virus, as per the researchers, and could detect even mutated forms of the virus.
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