DOCTOR GETS COVID-19 ANTIBODY TEST | Accuracy and importance of Coronavirus antibody test

Antibody testing works by taking a blood sample via fingerstick to determine whether the immune system has produced antibodies against a virus (in this case, SARS-CoV-2, aka COVID 19). If the test results show that these antibodies are in fact present, this indicates that an individual was infected with COVID-19 at some time in the past, and is still theoretically protected from a repeat infection.