Scientists have found out the reason for re-infection with coronavirus COVID-19. The results of the study are published in the journal Cell.

For example, specialists at the Massachusetts General Hospital in the United States studied the spleen and lymph nodes of deceased patients with COVID-19 and found that they lack germinal centers, which are an integral part of a sustained immune response..

It turned out that with a severe course of COVID-19, a huge number of signaling molecules - the cytokine TNF - are produced in those places where germinal centers are usually formed..

Experts came to the conclusion that in this case, some recovered people may in a few months become infected with coronavirus again and more than once..

Earlier in South Korea, scientists said that people who re-detect coronavirus after recovery do not pose a danger to others.. They called the test results of such people false positive..

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