All Tests, Immunity & Infectious Disease, COVID-19
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COVID-19 Antibody Test

$ 69.0

Learn if you've been exposed to COVID-19 or if you've built antibodies from vaccine or infection.

 If you’ve been exposed to COVID-19 or vaccinated, your body produces antibodies as part of your immune response. This test checks for antibodies to COVID-19 after exposure or vaccination and provides a numerical value that indicates the level of antibodies present.


This COVID-19 semi-quantitative test is for individuals who think they may have antibodies from infection or vaccination but who do not currently have symptoms of COVID-19.

COVID-19 Antibody Test
$ 69.0

When should I get the antibody test?


It can take up to 3 weeks for your body to develop antibodies after SARS-CoV-2 infection or after receiving the COVID-19 vaccine or boosters, so you should wait to get an antibody test until 3 weeks after your symptoms started, after testing positive or receiving a vaccine or booster.


You should also wait until your symptoms have improved and you have not had a fever or felt feverish for 24 hours without taking fever-reducing medicine.


Current research shows that antibody testing 3 to 4 weeks after symptom onset or known exposure to COVID-19 may provide the most reliable results. Talk to your healthcare provider for more information.

Test Details

Sample Type: Blood
Collection Method: In person at a Labcorp location
Age: 18+
Results: 1-3 days from when your sample arrives at our lab
HSA/FSA: Accepted
Test must be taken by purchaser

Preparation: No special preparation needed.

What's Tested
  • SARS-CoV-2 Semi-Quantitative Total Antibody

    Detects antibodies to SARS-CoV-2 spike protein receptor binding domain (RBD). 

Patient Service Centers

Labs in more than 2,000 locations across the country.

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  • This test may be right for you if: 

    • You have previously tested positive for COVID-19 infection and want to know if you still have detectable antibodies
    • You have never been diagnosed with COVID-19 and want to know if you have been previously exposed to the virus
    • You have received a COVID-19 vaccine and are interested in learning more about your antibody response

    This test may NOT be right for you if:

    • You are feeling sick or have had a fever within the last 24 hours
    • You are concerned you may currently have COVID-19
    • You were directly exposed to the virus in the past 14 days 
    • You have been diagnosed with COVID-19 less than 14 days ago
    • You are immunocompromised or have a weakened immune system
  • Labcorp is providing antibody (serology) testing using tests from various manufacturers. These tests have not been FDA cleared or approved, but they have been authorized by the FDA under an EUA for use by authorized laboratories.


    These tests have been authorized only for the detection of antibodies against SARS-CoV-2, and not for any other viruses or pathogens. These tests are only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of in vitro diagnostics for detection and/or diagnosis of COVID-19 under Section 564(b)(1) of the Act, 21 U.S.C. § 360bbb-3(b)(1), unless the authorization is terminated or revoked sooner.

  • False negative results can sometimes occur. This can happen if you get an antibody test too soon after being exposed or vaccinated and your body has not yet made enough antibodies to be detected by the test. It can also happen in individuals with weakened immune systems who may not develop detectable levels of antibodies after exposure or vaccination.


    False positive results can sometimes occur. This can happen if the test detects antibodies from other coronaviruses you may have been exposed to, like the viruses that cause the common cold.


    A negative antibody test does not rule out previous infection. A proportion of persons who are infected with SARS-CoV-2 might not develop measurable antibodies.


    If you are concerned about your results, it is important to follow up with a healthcare provider, who can evaluate your medical history.

  • This test can help you determine if you have developed an immune response after exposure to COVID-19 or vaccination. However, it should not be used to determine the level of immunity or protection you have because your body’s immune system is complex and research is ongoing to better understand immunity to SARS-CoV-2.


    Follow up with your healthcare provider for additional guidance on how to interpret your test results.

  • Visit the Labcorp OnDemand website to browse and purchase laboratory tests and create your Labcorp OnDemand account. All Labcorp OnDemand testing requires a healthcare provider order; for your convenience, Labcorp OnDemand has contracted with PWNHealth LLC and its affiliated professional entities (collectively, PWNHealth) to provide healthcare provider services. Visit a Labcorp location for sample collection; or, if using an at-home kit, collect your sample yourself. We’ll let you know when your results are ready to be accessed through your Labcorp OnDemand account or through your Labcorp Patient account. 

  • Your results will be provided to you through our secure online portal to view or print. Results are also provided to PWNHealth, which provides professional healthcare provider services for OnDemand tests. If you are accessing your results through your Labcorp Patient account, all users linked to the account will have access to all OnDemand test results. Results may also be provided to a local, state, or federal health authority, but only when legally required. For example, many states require the testing laboratory and healthcare provider to report test results for certain communicable diseases, such as sexually transmitted diseases or COVID-19, to local or state health departments.  


    If you have questions or comments regarding the Labcorp Notice of Privacy Practices, or have a complaint about our use or disclosure of your PHI or our privacy practices, please contact: [email protected], call us at (877) 234-4722 (877-23-HIPAA) and ask for the Labcorp HIPAA Privacy Officer, or send a written request to: HIPAA Privacy Officer, Labcorp, 531 South Spring Street, Burlington, NC 27215. You also may file a complaint with the Secretary of the U.S. Department of Health and Human Services.

  • Your testing will be performed in a CLIA-certified clinical laboratory. Labcorp provides leading-edge medical laboratory tests and services through a national network of primary clinical laboratories and specialty testing laboratories. Our labs perform regular quality assurance testing to ensure our results are accurate.