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November 17, 2020 // -- So far, it is not clear whether SARS-CoV-2 infections cause persistent immune memory, which can prevent new infections.
studies have shown that SARS-CoV-2-specific antibodies can only be detected in the first few months in many people who survive COVID-19, so only temporary protection may be provided to prevent re-infection.
team at Freiburg University Medical Center has shown that after recovering from a SARS-CoV-2 infection, immune cells form and remain in the body, allowing for a rapid immune response in the event of re-infection.
results were published in the journal Nature Medicine.
(Photo Source: www.pixabay.com) "These so-called memory T cells after SARS-CoV-2 infection look similar to those used after the real flu.
In this way, we believe that most people who survive SARS-CoV-2 infection have a protective effect on re-infection," explains Dr. Hoffman of the Second Department of Medicine at Freiburg University Medical Center. Professor
Thimme stresses that the close relationship between clinics and science at the highest level is a fundamental requirement in order to obtain reliable research results within a few months: on the one hand, COVID-19 patients are treated in our wards and continue to be cared for in specialized outpatient clinics, even after the infection has been cured.
, on the other hand, our clinics have extensive expertise in analyzing immune cells infected with hepatitis B and C viruses.
University of Freiburg Medical Center was not involved in the development of the anti-SARS-CoV-2 vaccine.
But Dr Neumann-Haefelin, head of the Gerok Liver Centre at Freiburg University Hospital, is optimistic: "Our results suggest that immunity to SARS-CoV-2 can be achieved after infection.
, the vaccine currently being tested could provide significant protection against SARS-CoV-2."
() Source: Immunological memory after SARS-CoV-2 infect recovery Original source: Isabel Schulien et al, Characterization of pre-existing and induced SARS-CoV-2-specific CD8 plus T cells, Nature Medicine (2020). DOI: 10.1038/s41591-020-01143-2
