Could prior exposure to common cold viruses affect the severity of SARS-CoV-2 symptoms? – EurekAlert

A study led by Charité – Universitätsmedizin Berlin and the Max Planck Institute for Molecular Genetics (MPIMG) shows that some healthy individuals possess immune cells capable of recognizing the novel coronavirus, SARS-CoV-2. The reason for this might be found in prior infections with ‘common cold’ coronaviruses. Whether or not this cross-reactivity has a protective effect on the clinical course in individuals infected with SARS-CoV-2 will now be addressed by the ‘Charité Corona Cross’ study.
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