Understanding your Spike Protein Antibody (Blood test) Results

Your Spike Protein Antibody results will be reported as a reference range: 

>/= 0.80 U/mL: This is a positive result for anti-SARS CoV-2S. A positive result means your body’s immune system has generated a response to the COVID-19 vaccine. It may also mean your body’s immune system has generated a response to a prior COVID-19 infection. The test is not able to differentiate whether the antibodies produced were in response to the vaccine or to a prior infection. 

< 0.80 U/mL: This is a negative result for anti SARS CoV-2S. A negative result means your immune system has not generated a measurable response to the COVID-19 vaccination and that you have likely not had the COVID-19 infection. 

It is yet undetermined what Antibody level is correlated to immunity against developing the COVID-19 infection

Please note: A numerical value will be reported up to 2,500 U/mL. For patients testing higher then 2,500 U/mL, your results will be reported as “Greater Than 2,500 U/mL."