The technology we use is very similar to a pregnancy test and is commonly called ‘lateral flow’ (because the solution of buffer and sample flow laterally along the test strip), but our self-test detects specific neutralising antibodies to SARS-CoV-2 in your blood sample. When your body detects something harmful (like a bacteria or a virus) your immune system begins to produce antibodies to try and defend your body. Each type of antibody is unique, and everybody makes them at different rates.
