An antibody test is a way to determine if a person’s immune system has responded to something foreign. In the case of COVID-19, ideally, it is best used when determining who has had the new coronavirus, which is different from the tests used to diagnose the illness. An antibody test may not be able to show if you have a current infection, because it can take 1-3 weeks after infection to make antibodies.
HOW IS THE ANTIBODY TEST ADMINISTERED?
Antibody or serological tests rely on detecting antibodies in a blood sample, usually obtained through a simple finger prick. These tests do not require special equipment to process the results, which allows them to be used in laboratories or at point-of-care.
1. COLLECT BLOOD/SERUM/PLASMA SAMPLE.
2. ADD BLOOD/SERUM/PLASMA
SAMPLE TO SAMPLE WELL.
3. PLACE 2-3 DROPS OF
BUFFER IN SAMPLE WELL.
4. READ RESULTS AFTER
10 MINUTES AND NO
MORE THAN 15 MINUTES.
Complete the Test
FREQUENTLY ASKED QUESTIONS
HOW DO ANTIBODIES WORK?
Antibodies are part of how your body responds to threats: viruses, bacteria, and other things the body decides are harmful. Imagine someone coughs on you and infects you with the new coronavirus. The virus cannot reproduce on its own, so it invades your cells to make copies of itself. Eventually, your immune system responds and creates antibodies. The presence of immunoglobulin M (IgM) antibodies indicate recent exposure to COVID-19, while the presence of immunoglobulin G (IgG) antibodies indicate later-stage infection.
HOW ACCURATE IS IT?
STANDARD Q COVID-19 IgM + IgG showed 81.8% of sensitivity and 96.6% of specificity.
Based on result of test with positive specimens, it was found that IgM antibody diagnosis with STANDARD Q COVID-19 IgM/IgG Duo Test was effective for diagnosis COVID-19 from the time when after about 7 days from the date of symptom onset. And STANDARD Q COVID-19 IgM/IgG Duo Test showed a high specificity in the test with negative specimens.
Diagnostic tests are developed with both sensitivity and specificity in mind. The greater the sensitivity, the less likely it will miss real cases. The greater the specificity, the more likely uninfected individuals will be correctly deemed negative. The problem is that tests almost never have 100% sensitivity and 100% specificity.
WHY IS IT IMPORTANT?
An antibody test helps researchers better understand how widespread the virus is. It allows them to identify which personal characteristics and environmental factors appear to play a role in how severely the virus affects particular groups of people, or populations.
Another value of this test is that it will be very helpful, even reassuring, to people to know, 'Have I been infected, and I am potentially protected now?’ Imagine being in a workplace environment. For health care providers, it would be helpful to know if someone had been infected but maybe did not have symptoms, and has now recovered and can take care of patients — maybe without needing certain personal protective gear.
Lastly, another benefit of antibody testing is being able to identify candidates who could donate plasma that could be used to treat others with more severe illness.
WHO SHOULD GET ONE?
If you’ve tested positive for COVID-19 and have fully recovered, you can probably get your antibodies tested now. Or, if you were prior to the COVID-19 pandemic, you should also be tested.
WHEN CAN I GET MY TEST RESULTS?
Your test results should be available within 15-30 minutes.