COVID-19 Antibody Testing
COVID-19 Antibody Testing
COVID-19 Antibody Testing – whether you have had the virus, and how strong your immunity is.
Our Antibody test proves whether you have detectable levels of antibody to SARS-CoV-2, the virus that causes COVID-19 and it tells you how high your antibody levels are.
If you are positive (you have had the virus), it will determine whether you have a low, medium, strong or very strong antibody response to SARS-CoV-2, this tells you how strong your immunity to SARS-CoV-2 is.
If you are positive the test will establish a baseline level for your antibody response, which will allow you to test again in the future to see if your antibody level is changing over time. This test measures the levels of two antibody types (IgM and IgG) against SARS-CoV-2. Some other tests only detect IgG antibodies, this test will detect around 20% of people who have IgM antibodies, but who do not have detectable IgG antibodies.
Our test is a laboratory-based enzyme-linked immunosorbent assay (ELISA), a commonly used biochemical test that can be used to detect antibodies to many infectious diseases. This works by mixing a small amount of an individual’s blood with a protein (antigen) from the virus. If antibodies to SARS-CoV-2 are present in an individual’s blood, they will recognise and bind to this viral protein, stopping the virus.
Our testing service is available to individuals, businesses and organisations in an effort to help bring employees back to the workplace safely. This is via the only home finger-prick kit sample testing kit that is registered with the MHRA, or a professional phlebotomy service, allowing individuals to give their blood samples at home, the workplace, or wherever is most convenient.
Individual results will normally be returned by e-mail within 1-2 days of us receiving your samples in our laboratory.
For companies, a comprehensive company report, indicating the percentage of employees with significant antibody levels, will be delivered within 10 working days.
Our test has been validated using exactly the same methodology as PHE (Public Health England) uses to assess tests it wishes to use, by testing against large numbers of SARS-CoV-2 proven positive samples (in our case community based, as well as hospitalised case samples) and large numbers of true negative samples taken at least 6 months before the first COVID-19 case in the UK.
Our test sensitivity in community COVID-19 cases is 87-91%, the Abbott and Roche tests are 68% and 69% respectively. All three tests are 100% in hospitalised cases.
To note: Results will be delivered via email within 1-2 days of receipt of samples in VirTus’ laboratory (Camden, London). VirTus’ labs are undergoing accreditation by the UK Accreditation Service (UKAS).