SARS-CoV-2 antibody tests are designed to detect specific antibodies against this virus. A positive IgG antibody test suggests past exposure and may indicate a prior infection which may be resolved or is still resolving, and/or protection against re-infection (“protective immunity”).
The SARS-CoV-2 antibody test has not been validated for purposes of diagnosis of infection or disease (COVID-19) and cannot be used to rule in or rule out infection or COVID-19. Sonora Quest offers the molecular test (test code 907080 for swab samples and 907078 for lower respiratory samples) for diagnosing an active COVID-19 infection.
IgG antibody testing should be performed to assess whether an individual (e.g., healthcare worker, student, general population, etc.) has been exposed to SARS-CoV-2 in the past. If a serology test delivers a positive result for the IgG antibody, that means the individual was previously exposed to SARS-CoV-2 and may indicate a prior infection which may be resolved or is still resolving, and/or protection against re-infection (“protective immunity”).