COVID-19 Coronavirus IgG ANTIBODY Test kit - Finger-Prick

I heard that COVID-19 finger-prick kits were unavailable?

Available again very soon - sign up for alerts above

You may have seen in the news some weeks ago that the government had paused the sale of COVID-19 antibody home collection kits. Initially this was to investigate the accuracy of these tests when used on fingerprick samples, but they also stated they needed to be satisfied about the labelling and use of the devices used in the collection process.

Although we had been providing fingerprick sampling kits for self collection since 2012 and had no doubt at all about both the ease of use of these kits for beginners and the viability of samples collected in such a way, we had ceased the sale of our standard home collection kits for self collection.


However, there still exists a need for fingerprick collections in patients who have difficult veins or who are needle phobic. Therefore, we have made the adjustment required by the regulator and fully compliant finger-prick collection kits will shortly be available for sale.

Verification is almost complete now and finger-prick collection kits will be available again very soon. Sign up for alerts above.

What does a COVID-19 Antibody test involve?

Ordering this coronavirus test kit will allow us to send you a home collection kit by next day courier (see below) which enables you to provide a small blood sample using a finger pricking lancet. This is similar to how diabetics carry out daily monitoring of their blood sugar levels. The container is then sent to a CQC registered laboratory. Your results will show if you carry antibodies to SARS-Cov2, which is the virus that causes the COVID-19 illness.

How accurate is this Coronavirus test?

Simply put, this test is highly accurate. The global manufacturer of this assay has recently won UK approval from PHE, and they are keen to point out that the validation study was carried out on venous samples. Results of this study are below.

  • 100% Sensitive at detecting IgG antibodies in people who have been ill from Covid-19 at 14 days or more after their first symptoms.
  • 99.6% Specific. This means that there were only 0.4% of people that gave blood before SARS-CoV-2 or had a respiratory illness that was caused by another virus who tested positive for IgG antibodies (false positives)

Our own laboratory has conducted it's own internal validation using finger-prick and venous samples and reports similar sensitivity and specificity. Additionally, the microtainer collection method in use by Blue Horizon has been used successfully for many years by the NHS and Private Healthcare for an array of analytes and has been internally validated by the laboratory for blood collection for COVID-19 (SARS-Cov2) Antibody Tests.

What does a positive Covid Antibody result mean?

A positive IgG result will confirm antibodies of the IgG class against Coronavirus (Covid-19). This informs us, with a high degree of confidence, that the patient has been infected by this virus at least a week before the sample was taken. The presence of IgG antibodies to a particular pathogen (infectious agent such as a virus or bacteria) usually implies a degree of immunity to further infection from the same agent. In the case of Covid-19 however, it is not known yet to what extent immunity is conferred, and if so for how long. What we can say is that having IgG antibodies to other viruses within the Coronavirus group is associated with at least short term immunity to re-infection.

What does a negative Covid Antibody result mean?

A Negative IgG result informs us, with a degree of confidence, that it is highly unlikely that the patient has been infected by this virus up until at least a week before the sample was taken. It is possible however that the patient could have been infected and not mounted a significant immune response - either because the infection was mild and did not lead to the production of a detectable amount of antibody or because the levels have not yet risen to a detectable level. This latter explanation is more likely if the time from onset of the illness to the time of taking the sample was less than 21 days. Repeat testing in 2 week’s time or longer following a negative result may lead to a positive result if this scenario is a possibility.

Tell me about the FREE next day Courier.

This past month has seen sub-par delivery times from the Royal Mail, which is understandable given their circumstances. Because of seeing the impact of this upon our customers we upgraded to an expedited service. As of 21st May we have upgraded outbound deliveries further and now use a next day Courier for next working day delivery if you order by 1. We aim to...

  • Dispatch your kit same day if you order by 1pm (m-f)
  • Send your kit by a Next Day Courier.
  • Provide you with a Royal Mail 24 tracked envelope back to the laboratory
  • The laboratory are typically emailing results now within 1 working day of sample receipt.

This latest development should see our customers experience a typical process time of 4 working days from ordering to receiving results if the sample is taken and posted the same day that the kit is delivered.

Is there a discount for NHS, Carers and Key Workers?

A rebate of 20% is now available for NHS staff, carers and key workers. When you have ordered, simply upload a semi-anonymous picture of your official ID on our NHS rebate contact form with your order ID and we'll action your refund within 2 working days for you. Alternatively, if you have an NHS email address we won't need photo ID so use it to simply email Naomi on tech@bluehorizonmedicals.co.uk quoting your order number.

What else do i need to know?

  • Test at least 14 days post exposure to COVID-19/onset of symptoms.
  • This is an easy at home blood test that is sent to our laboratory for analysis.
  • It tests for IgG antibodies to COVID-19, not the virus itself.
  • IgM or IgA antibodies are not tested with this test.