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Is it true that some people already have antibodies to SARS-CoV-2 from previous exposure to seasonal coronaviruses?

Biology/Immunity

A: Maybe; there *is* evidence of antibodies to seasonal coronaviruses reacting to some parts of the SARS-CoV-2 virus. BUT so far there is no solid evidence that these antibodies protect from COVID-19 infection or disease. What does it mean to have “cross-reactive” antibodies? There are four “common” or seasonal human coronaviruses which are one cause Read more…