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Your body makes antibodies from natural infection and/or vaccination and these are what give you protection.

It is the anti-spike or S antibodies, which are also called neutralising antibodies, that can stop the virus from entering the cells if you are infected. Think of a shower hat that covers the end of the spike or a key that fits into the specific lock, which blocks the virus entering the cell.

These protective antibodies are the type of antibodies that your BioSURE self-test detects.

The strength of your test line directly correlates to the strength of the line. Think of a line strength from 1 to 10. Even the very faintest level 1 line means you still have the equivalent of 50% protection against developing severe symptoms.

Knowing your current levels of protection helps you make better informed choices, for you, your family and your team.

Order today and #KnowYourStatus tomorrow.

Who should get tested?

Basically anyone who wants to know whether they (still) have protection against COVID-19.

Antibody levels are proven to decline over time.

Everybody's immune system responds differently. The amount of symptoms you had when you had infection makes a difference. The efficacy of vaccines also varies between manufacturers. So not only do the levels change over time, they are also very different to begin with.

Age and general health play a significant role in how strong your immune response is and how long you maintain antibody levels.

We have seen fairly universally that those with vaccination only and no natural infection, especially over the age of 50, do not maintain protective antibodies for very long, whereas those who have had vaccination and infection maintain the antibodies for much longer.

With life opening back up and the roll out of boosters, understanding where you are with your personal journey and how much protection you have, helps you make more informed decisions and can help put your mind at rest.

Knowledge is power, so take control and know your status on your own terms today.

Types of COVID antibody tests...

The BioSURE COVID-19 IgG Antibody Self Test is currently the only CE marked home test in Europe.

There are many illegal products being sold on-line so please check there are 4 numbers under the CE mark on your test. If there are no numbers, the test is not approved for home use.

There are many laboratories that offer 'self-testing' but they are rely home sampling as they require you to collect a large blood sample, post it off to a lab and wait a few days for your result.

With BioSURE, you need a fraction of a drop of blood and you get your own result in minutes.

I'm a bit confused about COVID tests...

There are so many different types of COVID-19 tests, so how do you know which one to use at which time?

An antigen test tell you if you have current infection and requires a sample from your nose, mouth or throat. PCR and what people are currently calling lateral flow tests (LFT's) are antigen tests.

An antibody test tells you if you have had a previous infection and/or an immune response to vaccination. It requires a blood sample.

To confuse things further, there are different types of antibody tests. Some detect IgM, which are detectable in the short term after you have had infection and most detect IgG antibodies but to the nucleocapsid protein. Your body does not make either IgM or nucleocapsid IgG antibodies from vaccination, so these tests will not work if you are trying to see if you have had an immune response to a vaccination or booster.

The BioSURE COVID-19 IgG Antibody Self Test detects the anti-spike IgG antibodies that your body makes from infection and / or vaccination. Your BioSURE test will tell you if you have protective antibodies.

The BioSURE COVID-19 IgG Antibody Self Test is currently the ONLY CE marked antibody test that is approved for home use.

If you want to know if you have COVID-19 infection now...

Polymerase chain reaction (PCR) tests are the tests that require a nasopharyngeal swab (very deep in the back of the throat and nose) and are then sent to a laboratory for analysis. You usually get your results in 1-2 days. These are the gold standard tests that are very sensitive - so sensitive that they can give positive results for people who are no longer infectious.

All current COVID-19 LFT's detect nucleocapsid proteins that are inside the virus. The Know Now true infectivity test is totally different. It uses saliva to detect the spike part of the virus, which is only detectable on live viruses. Therefore a positive result means someone is currently infectious.

Lateral flow tests (or LFTs*) are tests that require either a nasopharyngeal or an anterior nasal swab and give you results in minutes, although most are not very sensitive and quite often miss asymptomatic cases.

* Lateral flow is the type of technology that was originally developed for pregnancy tests, and means that the sample fluid flows laterally along the test strip. It is a generic term for the tests that use this type of technology, but has recently been used for the COVID-19 tests that the UK government have been given for free in schools.