COVID-19 IgG Antibody Test For Serosurveillance is a quantitative test to find out COVID-19 IgG antibodies. The Immunoglobulin-G Antibody test for SARS-CoV-2 is designed to detect antibodies against the virus that causes COVID-19. The test is conducted as a blood test. Antibodies are proteins produced by the immune system in response to an infection and are specific to that particular infection.Find the IgG Antibody Test cost here.