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The immunity of the body is one of the important elements against the emerging corona virus, so how does this device work and interact with vaccines against Covid-19?
The immune system consists of parts, the most prominent of which is the “first line of defense” and includes immune cells that alert the body to any attack, colonize infected cells, and activate what is known as the “adaptive” immune system. , which plays a critical role in the enjoyment of immunity in the future. On the importance of the adaptive immune system, the British newspaper “The Guardian” quoted the expert in immunology and infectious diseases from Imperial College London, Professor Danny Altman, saying: “The adaptive immune system has this special characteristic of memory, which is explodes in vaccines. “
When it comes to the adaptive immune system, it includes two main types of white blood cells, known as lymphocytes.
B cells produce antibody proteins that can bind to the virus to prevent it from entering cells.
And kill those T cells, infected with the virus, and produce proteins called “cytokines,” which work to turn the B cells into long-lasting ones that make better antibodies to protect the body, if exposed to the virus again.
Normally, immune T cells, B cells, and antibodies work hand-in-hand to defeat the virus, but studies have found only one type of Covid-19 in some people, and other research has indicated the possibility of that proteins caused by antibodies disable the defense mechanisms of the organs. the body.
What happens after the infection clears?
After infection, antibody levels begin to decline, while memory B cells and T cells tend to survive longer.
Last July, a scientific study was published indicating that the decrease in antibody levels may differ between men and women, and that the level of production of these bodies is related to the severity of the disease and its symptoms.
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