The science


It's all about accuracy!

The sciene behind our AELYSA Corona Antibody Tests


If you get your blood tested for SARS-CoV-2 antibodies, you want to be sure the test result can be trusted. We at AELYSA Bioassays therefore only use a laboratory-based ELISA test and not a so called "Quick test".

ELISA stands for enzyme-linked immuno-sorbent assay, a procedure employing carefully selected enzyme, antigen and antibody compounds to allow the precise detection of SARS-CoV-2 specific antibodies.

The accuracy of such ELISA tests depends on a multitude of factors and is generally regarded very high (>99 %). In an ideal world, every test would be 100 % accurate and every test result would be 100 % true. In reality, each and every diagnostic tests is differently affected by the presence of of interfering substances which lead to a fraction of false negative and false positive results. As a consequence, one single test may be reliably giving a result for someone who does not have antibodies but give an unreliable result for someone who does have antibodies.


How AELYSA Bioassays secures reliable test results

We do two things to achieve maximum reliability of our antibody tests:
  1. We use only CE-IVD certified and validated ELISA tests to test blood samples for antibodies against SARS-CoV-2
  2. We test for two different types of IgG antibodies against SARS-CoV-2. One type targets the outer area of the Corona Virus (Spike-Protein), the second type targets the inner area of the Corona Virus (N-Protein)

Following this principle, we ensure reliable test results in the detection of antibodies against SARS-CoV-2. Many providers test only for one type of IgG antibody and might report a negative test result although your body produced the other type of IgG antibody.
Of course, our testing protocols are continuously adapted based on the most recent research and knowledge about SARS-CoV-2 and we only employ test reagents and devices after internal quality control.                                                                    


Current AELYSA Corona Antibody Test Scores

>99.9% Sensitivity

(>18 days after symptom onset)

>99.8% Specificity

>99.8% Accuracy

(at 5.5% seroprevalence)
(last updated: June 2, 2020)

What does that mean for my test result?

It means there is a

>96.7 % chance

that you truly have antibodies against SARS-CoV-2 if your test result is positive.

>99.9 % chance

that you truly do not have antibodies against SARS-CoV-2 if your test result is negative.