People who have not been infected with the emerging coronavirus (Covid-19 |) in their lives can have immunity to it if they are exposed to common cold and influenza .. This is what was stated by a study conducted by scientists from the "La Jolla" Institute of Immunology in California, which was done by analyzing 11 blood samples were taken two years ago from people who were exposed to another type of coronavirus, and half of the samples contained immune cells that were resistant to the disease. They identified corona virus in laboratories, and 20% of the samples had immune cells that could be able to kill the corona virus. .

Scientists at the La Jolla Institute say that if a person had had a common cold, he could have some form of immunity, and the scientists explained that the Corona virus would not be foreign to the immune system of these people, and therefore they could be able to quickly fight the disease.

The study revealed that corona virus patients have a strong subsequent immune response to the virus, which researchers said it bodes well for the development of the vaccine against the virus, which is promising because it indicates that the patient becomes protected if he gets sick again, because his blood contains cells Immune systems are white blood cells that play a vital role in the immune system. They are composed of helper cells and killer cells. Helper cells work to identify the virus cells that attack the cells of the body, while the killer attacks and kills the virus cells.

The scientists mixed blood samples with the Corona viruses to see what could happen. They discovered that about 70% of the samples instigated the appearance of killer cells, while all of them showed auxiliary cells. Immune cells recognize the types of proteins found in the Coruna virus, which is why they fight them. But so far it is not entirely known how the killer cells work.

"Reports about people who have contracted the virus a second time have increased anxiety, but after it has been proven to us now that the average person has a strong immune response, this would remove this anxiety," said Dr. Shane Kroti, who participated in the research.

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