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COVID-19 study: Exposure to harmless coronaviruses boosts immunity

Geneva: People who have had a strong immune response to other human coronaviruses may also have some protection against the SARS-CoV-2 virus that causes COVID-19, according to a study. The research, published in the journal Nature Communications, used a specially developed test to analyse antibody levels against four other human coronaviruses in 825 blood samples taken […]