Immune System Blood Test
Highly rated for depth and priced well below the market
An 8-marker blood test covering white and red blood cells, vitamin D, B12, iron status and inflammation, for a broad check of immune-related health.
A blood test for Epstein-Barr virus antibodies, a very common virus linked to glandular fever, useful for checking current or past infection when symptoms such as fatigue, sore throat or swollen glands are hard to explain otherwise.
1 biomarker as listed by Better2Know.
The Epstein-Barr virus is extremely common and often spreads through saliva, which is why it is sometimes called the kissing disease; most people are exposed to it at some point in their lives, often without symptoms. This test measures IgG and IgM antibodies from a single blood sample, which can help indicate whether an infection is currently active or happened in the past, and is aimed at people with symptoms such as fever, sore throat, fatigue or swollen glands that have not been otherwise explained.
Against the wider set of immunity tests we track, this listing scores poorly on price, coming in nearly double the median for similarly sized immunity tests. It sits toward the lower end for clinical depth as a single marker, and moderately for collection convenience, since a venous blood draw at a clinic is required with results back within about 2 days. It loses marks on results and follow-up, since a doctor does not routinely review your result unless it is positive.
On trust signals, Better2Know scores a 4.2 on Trustpilot from 775 reviews, is CQC registered, and has traded since 2008.
This suits people with unexplained symptoms such as persistent fatigue, sore throat, fever or swollen glands who want to check whether Epstein-Barr virus could be the cause, particularly if they want to distinguish a current infection from a past one. Given how far its price sits above the median for immunity tests of this size, it is worth discussing with a GP first, since EBV testing is also available through other routes.
There are no comparable tests recorded for this listing, so we cannot name a specific cheaper alternative.
A clinician takes a venous blood sample at a Better2Know clinic and sends it to the laboratory, which tests for both IgG and IgM antibodies. Results are typically available within about 2 days of the sample arriving and are uploaded to your secure online patient area, with notification by phone, email or text. If you test positive, Better2Know arranges a doctor consultation to discuss next steps; results are not otherwise reviewed by a doctor as standard.
This single blood test checks for Epstein-Barr virus antibodies, which can help show whether an infection is current or in the past, for £250. That is nearly double the median price for the immunity tests we track, with results back within about 2 days.
The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.
1 biomarkers, placing it in the 36th percentile of immunity tests we track.
Requires a venous draw at a clinic; results in around 2 days, in line with or faster than similar tests.
Results are not doctor-reviewed and no consultation is included; the provider does not describe the report format.
Trustpilot 4.2 from 775 reviews; CQC registered; trading 18+ years.
£250.00 against a median of £129.00 for the 79 similarly sized immunity tests we track (+94%).
Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.
Highly rated for depth and priced well below the market
An 8-marker blood test covering white and red blood cells, vitamin D, B12, iron status and inflammation, for a broad check of immune-related health.
Six-marker immunity panel below the category median
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