What is the Covid-19 Coronavirus Antibody Test?
The COVID-19 coronavirus antibody test helps identify the presence and level of antibodies to the Covid spike protein. This is useful to show whether you have previously come into contact with the virus or not. Predominantly, it highlights past infection but has some ability to check for current infection. However, due to a limited test window, it does not provide the same level of accuracy as a PCR swab coronavirus test which is the test of choice during an active infection.
In all of our clinics, we are able to offer a quantitative spike (S) protein antibody test, also known as the Anti SARS CoV-2 S test. We also offer a home antibody test.
Our test is run at London’s largest and most reputable UKAS ISO15189 accredited laboratory and is manufactured by one of the global leaders in Covid testing.
When should you get a coronavirus antibody test?
If you have had symptoms of coronavirus, you should only come into clinic after you have completed your self-isolation period and your symptoms have passed. The Anti SARS CoV-2 S test is most accurate when taken 14 days or more after exposure to Covid-19 or vaccination.
The Elecsys® Anti SARS CoV-2 S has internally validated and has been shown to be 99.98% Sensitive and 98.8% Specific in samples taken 14 days or later after positive PCR test. The presence or absence of antibodies does not definitively determine immunity to SARS CoV-2 but helps to numerically measure an individual’s antibody response.
If you have symptoms you should have the PCR swab coronavirus test to identify whether you currently have the active virus.
Please do not come into any of our clinics if you are currently showing any Covid-19 symptoms.
Please note home antibody tests are suitable for patients over 18 only.
What is the Spike Antibody Test for?
By offering the covid antibody test, we hope to allow individuals to understand even more about their antibody status and how their antibody levels may change with time.
Many vaccines aim to cause an antibody response against the spike protein. By testing spike protein levels before vaccination and then at intervals afterwards, we may be able to better understand how different individuals respond to vaccines.
How accurate is the Spike Antibody Test?
The Anti SARS CoV-2 S test is most accurate when taken 14 days or more after exposure to Covid-19 or vaccination. The presence or absence of antibodies does not definitively determine immunity to SARS CoV-2 but helps to numerically measure an individual’s antibody response.
It is important to note that not everyone who has Covid-19 or has been vaccinated will develop detectable antibodies.
How do I get a Spike Antibody Test?
The Anti SARS CoV-2 S test is a simple blood test that we can do at any of our private GP clinics. Simply book an appointment at a time, and location, that suits you. We’ll email you with your results within 2-3 days. We also offer a home antibody test. This test is a self-administered finger-prick test that is then sent via return post to our laboratory for analysis and results within 1-2 of them receiving it.
How much does a Spike Antibody Test cost?
Type of Antibody Test | Location | Cost |
Home (self-collection) | Nationwide | £60 inc. postage |
In-clinic | Any clinic | £70 inc. appointment |
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Home antibody tests are now available for home delivery for £60 inc. postage fee.