What Does A Negative SARS-CoV-2 Antibody Test Mean?
COVID-19Common questionWhat does a negative SARS-CoV-2 antibody test mean?A negative result on a SARS-CoV-2 antibody test means antibodies to the virus were not detected in your sample. It could mean: • You have not been infected with COVID-19 previously. • You had COVID-19 in the past but you did not develop or have not yet developed detectable antibodies.
Does an antibody test diagnose an active COVID-19?
Antibodies can take several days or weeks to develop after you have an infection and may stay in your blood for several weeks after recovery. Because of this, antibody tests should not be used to diagnose an active coronavirus infection.
COVID-19 Frequently Asked Questions | FDA
What does a negative COVID-19 antigen test result mean in asymptomatic persons?
Negative test results using a viral test (NAAT or antigen) in asymptomatic persons with recent known or suspected exposure suggest no current evidence of infection. These results represent a snapshot of the time around specimen collection and could change if tested again in one or more days.
Overview of Testing for SARS-CoV-2 (COVID-19)
What does it mean if I tested positive for SARS-CoV-2 antibodies?
If you test positive for SARS-CoV-2 antibodies, it probably means you've had the virus. It's also possible to get a “false positive” if you have antibodies but had a different kind of coronavirus. A positive result might mean you have some immunity to the coronavirus.
Coronavirus (COVID-19) Antibody Tests: How It Works & How to Get One
What is the false negative rate from COVID-19 antibody test results?
The reported rate of false negatives is 20%. However, the range of false negatives is from 0% to 30% depending on the study and when in the course of infection the test is performed.
Which test is best for COVID-19?