Covid-19 Standard S1 Antibody Test

Our S1 antibody test is suitable for anyone wanting to understand their immune response to Covid-19.

You will receive your home sample kit via Royal Mail (next working day delivery if ordered before 2pm) by free delivery. Then you will need to take your finger prick sample at home, following the instructions in the kit. 

You can then return your sample using the pre-paid envelope, which can simply go in any post box.

Results will be delivered via email (usually by 6 pm) within 2 working days of receipt of samples in VirTus’ laboratory.

In your finger-prick test kit, you will receive all the necessary equipment and instructions for taking the test yourself. This will include:

• 1x detailed instruction sheet to tell you how to easily register your kit with us and how to take your sample
• 2x blood collection tubes (we only need one tube returned with a few drops of blood; the second tube is a spare)
• 1x pre-injection alcohol wipe
• 3x lancets to prick your finger (one is usually enough)
• 1x hard plastic casing to return your sample in
• 1x biohazard bag
• 1x plaster
• 1x pre-paid return envelope

Our Standard S1 test is specific to the original Covid-19 strain. However, we also offer Omicron antibody tests and an add-on antibody test for the Delta variant.

If you receive an overall “Positive” test result, this confirms that you have either had a previous Covid-19 infection or received a Covid-19 vaccine, and you have developed an immune response against the original Covid-19 strain (first identified in Wuhan). However, you should still abide by government guidelines whenever necessary as this test does not measure your immune responses to other strains, such as Omicron. 

A “Negative” result means that your antibodies are below the detection limit of our test. This could be because you have not previously been infected or vaccinated against Covid-19, or you have been infected or vaccinated and your antibodies have diminished over time.