Covid-19: how the immune system fights this virus

Although many people who are diagnosed with Covid-19 develop serious symptoms, some can recover within a very short time. A recent study shows how a healthy person’s immune system can fight coronavirus. In a study published in the journal Nature Medicine, researchers from the University of Melbourne have defined how an immune system responds to viruses or other pathogens, which are classified as foreign bodies in the body. Scientists have analyzed one of the first patients hospitalized by coronavirus in Australia.

It was a 57-year-old who had traveled from Wuhan to Melbourne, Australia. This woman was experiencing mild symptoms of infection, and had no other health problems. Although the virus was young, and never seen before, a healthy person without any other health problems can best fight it. This is a very important step towards understanding and developing the most effective ways to treat this new disease.

Scanning the woman’s immune system, scientists have found that she had stayed only 5 days in specialized care, and it was only after 11 days that all symptoms disappeared. Immunoglobin, which is one of the most specialized antibodies in the body was consistently high. Even T cells and B cells, which are types of protective leukocytes in the body, were constantly active and attacking the virus. This means that a healthy body, without any other illness, activates all the necessary “weapons” and can fight off unknown pathogens, as was the case with coronavirus.

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