COVID-19 Antibody (IgG) Serology Test - Now Available - Buy Online and Get Tested!



COVID-19 Antibody Test - Serology Immunoassay (Whole Blood)

Regular price $120.00

Shipping calculated at checkout.

SARS-CoV-2 (COVID-19) Antibody (IgG) Serology Immunoassay Test

This FDA authorized blood test checks for a type of antibody called immunoglobulin G (IgG) that is the result of past or recent exposure to COVID-19, also known as the novel coronavirus (this is not a test for an active infection). The human body produces IgG antibodies as part of the immune response to the virus. It usually takes around 10 days to start producing enough antibodies to be detected in the blood. However, in some people it may take several weeks.

Test results may help identify if you were previously exposed to the virus and, if exposed, can check whether or not your body has produced antibodies. Currently, the FDA supports antibody testing with the following important points:

  • Antibody tests can play a critical role in the fight against COVID-19
  • Testing can help identify who may have been exposed to SARS-CoV-2, the virus that causes the COVID-19 infection, and potentially developed an immune response
  • Right now, it is unclear whether these individuals may be less susceptible to infection, but in the future, broad use of antibody tests and clinical follow-up will provide more information on this point

Multiple sources, including the CDC and healthcare experts, recommend you discuss your test results and whether to return to work with your healthcare provider and employer.

  • If you were never diagnosed with COVID-19, this test can help determine if you may have been previously exposed to the virus.
  • If you were diagnosed with COVID-19, this test can check whether or not your body has produced antibodies.

Note: This test does not require fasting and is only available for persons 18 years of age or older.

Test results may help identify if you were previously exposed to the virus and, if exposed, can check whether or not your body has produced antibodies. Currently, the FDA supports antibody testing with the following important points:

  • Antibody tests can play a critical role in the fight against COVID-19
  • Testing can help identify who may have been exposed to SARS-CoV-2, the virus that causes the COVID-19 infection, and potentially developed an immune response
  • Right now, it is unclear whether these individuals may be less susceptible to infection, but in the future, broad use of antibody tests and clinical follow-up will provide more information on this point
  • Experience with other viruses suggests that individuals who have antibodies, provided they are recovered and not currently infected with the virus, may be able to resume work and other daily activities in society

This test may be helpful if you:

  • Have had a positive test for COVID-19 and it has been at least 7 days and you want to know if you have detectable levels of IgG and IgM antibodies
  • Have not experienced a fever or felt feverish in the last 3 days
  • Have not experienced new or worsening symptoms of COVID-19 in the past 10 days: loss of smell or taste, shortness of breath or difficulty breathing, feeling weak or lethargic, lightheadedness or dizziness, vomiting or diarrhea, slurred speech, and/or seizures

This test may NOT be helpful if you are:

  • Feeling sick or have had a fever within the last 3 full days, please contact a healthcare provider
  • Trying to diagnose COVID-19, please contact a healthcare provider
  • Less than 7 days since being tested for and diagnosed with COVID-19
  • Directly exposed to COVID-19 in the past 14 days
  • A person with a compromised immune system, a condition that makes it difficult to fight infections

What is COVID-19? 

COVID-19 is caused by the SARS-CoV-2 virus. The virus, which can cause mild to severe respiratory illness has now spread globally, including the United States. The current information available to characterize the spectrum of clinical illness associated with COVID-19 suggests that symptoms include cough, shortness of breath or difficulty breathing, fever, chills, muscle pain, headache, sore throat or new loss of taste or smell.   

How are people tested for COVID-19?

Two kinds of tests are currently available for COVID19:  diagnostic tests and antibody tests.

  • A diagnostic test tells you if you have a current infection.
  • An antibody test tells you if you had a previous infection

What does it mean if I have a positive test result? 

If you have a positive test result, it is possible that you have had recent or prior COVID-19 infection and that you have developed an antibody response to the virus. Your healthcare provider will work with you to determine how best to care for you based on the test results along with other factors of your medical history, your symptoms, possible exposures, and geographic location of places you have recently traveled. There is also the small possibility that this test can give a positive result that is wrong (a false positive result). Even a high-performing antibody test when used in a population without many cases of COVID-19 infection may produce as many or more false results as true results because the likelihood of finding someone who has been infected is very small. Your healthcare provider will work with you to determine the likelihood of false result.

It is not known how long antibodies to SARS-CoV-2 will remain present in the body after infection. It is not known whether having antibodies to SARS-CoV-2 will protect you from getting infected again or help reduce the severity or duration of a future COVID-19 infection.

What does it mean if I have a negative test result? 

A negative test result means that the antibodies to the virus that causes COVID-19 were not found in your sample.

However, it is possible for this test to give a negative result that is incorrect (false negative) in some people with COVID-19. A negative result may occur if you are tested early in your illness and your body hasn’t had time to produce antibodies to infection. This means that you could possibly still have COVID-19 even though the test is negative. If this is the case, your healthcare provider will consider the test result together with all other aspects of your medical history (such as symptoms, possible exposures, and geographical location of places you have recently traveled) in deciding how to care for you.

It is important that you work with your healthcare provider to help you understand the next steps you should take.

Is this test FDA-approved or cleared? 

No. This test is not yet approved or cleared by the United States FDA. When there are no FDAapproved or cleared tests available, and other criteria are met, FDA can make tests available under an emergency access mechanism called an Emergency Use Authorization (EUA). The EUA for this test is supported by the Secretary of Health and Human Service’s (HHS’s) declaration that circumstances exist to justify the emergency use of in vitro diagnostics for the detection and/or diagnosis of the virus that causes COVID-19. This EUA will remain in effect (meaning this test can be used) for the duration of the COVID-19 declaration justifying emergency of IVDs, unless it is terminated or revoked by FDA (after which the test may no longer be used).

What are the approved available alternatives? 

There are no approved available alternative tests.  FDA has issued EUAs for other antibody tests that can be found at:

https://www.fda.gov/emergencypreparedness-and-response/mcm-legal-regulatoryand-policy-framework/emergency-useauthorization#2019-ncov. 

Where can I go for updates and more information? 

The most up-to-date information on COVID-19 is available at the CDC General webpage:

https://www.cdc.gov/COVID19. In addition, please also contact your healthcare provider with any questions/concerns.  

https://www.bmj.com/content/bmj/369/bmj.m1742.full.pdf