What is antibody/serology testing, and can I be tested using this method?

Serology testing checks a sample of a person's blood to look for antibodies to SARS-CoV-2, the virus that causes COVID-19. These antibodies are produced when someone has been infected, so a positive result from this test indicates that person was previously infected with the virus.

The Centers for Disease Control and Prevention (CDC) is working with other federal agencies to evaluate the performance of commercially manufactured serology tests that are becoming increasingly available from healthcare providers. This evaluation is expected to be completed in late April. We do not know yet if the antibodies that result from infection with SARS-CoV-2 can protect someone from reinfection with this virus or how long antibodies to the virus will protect someone. Scientists are conducting research to answer those questions.

Serology tests may not be able to tell you if you are currently infected because it typically takes 1 to 2 weeks to develop antibodies to SARS-CoV-2. To tell if you are currently infected, you would need a test that identifies the virus in samples from your upper respiratory system, such as a nasopharyngeal swab.

If you are interested in being tested for antibodies, call the COVID-19 hotline at 888-364-3065 to find the nearest testing location. There are a limited number of antibody test kits available; many test sites have a maximum number of people they can test each day.

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1. Is there a travel advisory for New York State?
2. What are the symptoms of COVID-19?
3. Can I get tested for COVID-19?
4. Can COVID-19 be prevented?
5. Who is at higher risk for serious illness from COVID-19?
6. Can COVID-19 be treated?
7. Can someone who has had COVID-19 spread the illness to others?
8. What is the difference between quarantine and isolation?
9. What is antibody/serology testing, and can I be tested using this method?
10. Can recovered COVID-19 patients donate plasma?
11. What is the NY State guidance for cloth face coverings?
12. What is the NY State Department of Health (NYSDOH) guidance for face coverings in the workplace?
13. What cleaning products should I use to protect against COVID-19?
14. Should I use soap and water or a hand sanitizer to protect against COVID-19?
15. What temperature kills the virus that causes COVID-19?
16. Can the virus that causes COVID-19 be spread through food, including restaurant take out, refrigerated or frozen packaged food?