Public immunity to COVID-19 is probably higher than shown by antibody tests

Public immunity to COVID-19 is probably higher than shown by antibody tests

Public immunity to COVID-19 is probably higher than shown by antibody tests

New research from Karolinska Institutet and Karolinska University Hospital in Sweden shows that many people with mild or asymptomatic COVID-19 demonstrate so-called T-cell-mediated immunity to the new coronavirus, even if they have not tested positively for antibodies.