Preliminary research suggests that Covid-19 causes the immunity of Covid-19 to last for at least six months, and possibly much longer, perhaps even years, when all components of the body’s immune system are taken into account. Is.
On Monday server online server biarxiv.rg. The pre-print paper, published on, appears to contradict previous research that has detected transient immunity to the novel coronavirus, based on measurements of antibodies, or immune protein components.
However, the new study – which has not been peer-reviewed or published in a scientific journal – involves analyzing antibodies, B cells and T cells, among other parts of immune memory, over time, among other features of the immune system.
About the study: The study included 185 adults aged 19 to 81 in the United States who had recovered from Covid-19. Most adults had mild disease.
Researchers at the University of California, San Diego and the La Jolla Institute of Econ School of Medicine at Mount Sinai analyzed blood samples from adults, some collected at different locations after symptoms began, some with more than six people gathered. Months later.
In the blood samples, the researchers examined the components of immune memory. They found that the antibodies were “durable,” with only a “moderate reduction” in six to eight months, but noted that the level of antibody response in adults ranged about 200 times.
Researchers also found that memory B cells were found in almost all Covid-19 cases, and that memory B cells increased over time. The researchers wrote in their study that “B-cell memory for some other infections is longer, including 60+ years after the smallpox vaccination or 90+ years after being infected with influenza.”
The researchers identified two types of T cells and their data suggest that “T cell memory may reach a more stable platelet or slow decay stage, up to 6 months after subsequent infection.”
Remember: This study comes with limitations, requiring more research to determine whether similar findings emerge in a larger group of people on longer time issues.
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