COVID-19 antibody test

SARS CoV-2 antibody test; COVID-19 serologic test; COVID-19 - past infection

This blood test shows if you have antibodies against the virus that causes COVID-19. Antibodies are proteins produced by the body in response to harmful substances, such as viruses and bacteria. Antibodies may help protect you from getting infected again (immune).

The COVID-19 antibody test is not used to diagnose a current infection with COVID-19. To test if you are currently infected, you will need a SARS-CoV-2 (or COVID-19) virus test.

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean