Test Name: SARS-CoV-2 IgA & IgG & IgM Antibodies
Synonyms: COVID-19 Antibodies, COVID-19 Serology, COVID-19 Immune Response, Coronavirus Antibodies
This is a qualitative detection of IgA, IgG and IgM antibodies to SARS-CoV-2, the virus that causes COVID-19, to help identify individuals who have been exposed to the virus. Serologic results should not be used as the sole basis to diagnose or exclude recent SARS-CoV-2 infection. This test is recommended in individuals at least 10 days post symptom onset or following exposure to individuals with confirmed COVID-19.
Serology testing, also known as coronavirus antibody tests, can check for a types of antibodies (IgA, IgG and IgM) developed after exposure to the SARS-CoV-2 virus that causes COVID-19. This type of COVID-19 test is for individuals who think they may have previously had COVID-19 and do not currently have symptoms. The human body produces IgA, IgG and IgM antibodies as part of the immune response to the virus. On average, IgA antibodies are usually detectable within 3-7 days from the start of the infection. They are found in the linings of the respiratory tract and digestive system, as well as in saliva (spit), tears, and breast milk. On average, it takes roughly 10 to 18 days to produce enough IgG antibodies to be detected in the blood. This is the most common antibody. It’s in blood and other body fluids, and protects against bacterial and viral infections. IgG antibodies can take time to form after an infection or immunization and can be present up to several years after. On average, IgM antibodies are usually detectable within 3-7 days from the start of the infection. They are found mainly in blood and lymph fluid, and are the first antibodies the body makes when it fights a new infection. IgM antibodies are indicative of recent exposure and are present in the early stages of infection.
The CDC and healthcare experts recommend you discuss your test results and whether to return to work with your healthcare provider and employer.
WHO SHOULD BE TESTED?
Fasting is not required prior to testing.
An electronic blood draw requisition will be emailed to you along with a list of laboratory locations near you. There is no need to select Priority or Overnight shipping as there is nothing to physically send out.