Covid-19 survivors remain protected for 20 months Scientists from the University of Gothenburg in Sweden have found that protective T-cells in COVID-19 survivors remain in the body after 20 months. However, their number may not be enough to protect against re-infection..

After infection with SARS-CoV-2, protective immune responses soon develop in the human body due to the appearance of virus-specific T cells and antibodies.. A number of scientists had fair fears that this immunity does not last for a long time, and re-infection can cause a severe form of coronavirus.. Scientists from Sweden have found that several variants of virus-specific T cells are protected in the blood of people who have had COVID-19.

Those who recover from COVID-19 receive protection for 10 months However, significant numbers of them disappear after 10-12 weeks. But a group of highly specific T cells designed to facilitate the process of destroying infected cells remained active in all coronavirus patients even after 20 months.. These cells did not disappear or decrease in volume..

Immunologist warns of the possibility of re-infection for those who have recovered from covid The findings may explain the reduced risk of severe disease and mortality among patients who have experienced re-infection and coronavirus. The conclusion comes after a numerical study of over 80 blood tests from hospital staff who contracted a mild form of the coronavirus in the first year of the pandemic.. The control group included people not infected with coronavirus.

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