Hepatitis B Immunity
Private Hepatitis B Immunity testing in London for £38, assessing two HBV markers with results expected in around 1 business day.
Turnaround time
1 business day
Biomarkers count
2
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Overview of the Hepatitis B Immunity Test
The Hepatitis B Immunity test is a two-marker blood profile designed to provide information about protective immunity to Hepatitis B and the presence of Hepatitis B Surface Antigen.
The current profile contains 2 biomarkers: Hepatitis B Immunity and Hepatitis B Surface Antigen.
Hepatitis B Virus, or HBV, is a blood-borne virus that primarily affects the liver.
Vaccination against Hepatitis B stimulates the immune system to produce antibodies against the Hepatitis B surface antigen. These antibodies, known as anti-HBs, are used to assess whether protective immunity is present.
Anti-HBs can also develop naturally after recovery from a previous Hepatitis B infection.
In people who have completed a vaccination course, an anti-HBs concentration of 10 mIU/mL or above, when measured at the appropriate post-vaccination time, is commonly considered evidence of an adequate protective response.
The profile also includes Hepatitis B Surface Antigen, or HBsAg.
HBsAg is a marker associated with current Hepatitis B infection and can be present during either acute or chronic infection.
This combination therefore provides more information than an antibody measurement alone: it can assess whether protective surface antibodies are present while also checking for a principal marker of current HBV infection.
Interpretation depends on the relationship between the two results.
For example, anti-HBs positivity with negative HBsAg may be compatible with immunity, but distinguishing vaccination-derived immunity from immunity following previous natural infection can require Hepatitis B Core Antibody – Total.
The result should therefore be interpreted alongside vaccination history, previous HBV results and any additional Hepatitis B markers where necessary.
What Does the Hepatitis B Immunity Test Check?
This profile combines an immunity-related Hepatitis B marker with a surface antigen marker to provide information about protection and current infection status. This test measures 2 biomarkers.
Hepatitis B Immunity
Measures Hepatitis B surface antibodies associated with protective immunity following successful vaccination or recovery from previous infection.
Hepatitis B Surface Antigen
Detects HBsAg, a viral surface protein associated with current Hepatitis B infection.
Who May Benefit From the Hepatitis B Immunity Test?
This test may be useful for people who need to confirm Hepatitis B immunity or require additional reassurance about their current surface-antigen status.
People who have completed a Hepatitis B vaccination course - Testing can confirm whether an appropriate surface-antibody response has developed.
Healthcare professionals - Evidence of Hepatitis B immunity may be requested for occupational-health purposes.
People working with blood or body fluids - Occupational settings can make documentation of immunity particularly important.
People with an uncertain vaccination history - Testing can provide objective information about current surface-antibody status.
People who have previously had Hepatitis B - Antibody testing can contribute to assessment of post-infection immunity.
People requiring immunity evidence for work, education or clinical placements - Laboratory documentation may be requested by individual organisations.
People with a previous low anti-HBs result - Repeat testing may be used after vaccination or booster treatment.
People who want broader Hepatitis B information than immunity alone - The current profile also includes Hepatitis B Surface Antigen.
How to Prepare
Do not arrange unnecessary repeat vaccination solely on the basis of an isolated low antibody result without considering your vaccination history and occupational-health guidance.
The appropriate interpretation can differ between previously vaccinated healthy adults and people in special clinical groups.
Symptoms and Reasons to Consider the Hepatitis B Immunity Test
Immunity testing itself is usually performed without symptoms. The additional Surface Antigen measurement can also provide information where current infection needs consideration.
No symptoms but a need to confirm vaccination response - Many people book immunity testing for occupational or administrative reasons.
An uncertain or incomplete vaccination history - Testing can clarify whether surface antibodies are currently detectable.
A previous low Hepatitis B antibody level - Repeat measurement can assess the response after further vaccination.
A previous Hepatitis B infection - Testing may contribute to assessment of subsequent immunity.
Recent occupational exposure to blood or body fluids - Clinical assessment may include several HBV markers rather than immunity testing alone.
Jaundice following a possible Hepatitis B exposure - HBsAg and wider Hepatitis B testing may be relevant.
Unexplained abnormal liver tests - Current HBV infection is one possible cause that may require investigation.
Hepatitis B can be present without symptoms.
A single immunity profile cannot always distinguish every possible HBV status pattern, particularly previous natural infection, occult infection or very recent exposure. Wider Hepatitis B serology may therefore be recommended.
How to Book Your Hepatitis B Immunity Test
The Hepatitis B Immunity test can be booked privately for assessment of Hepatitis B protection and the current live profile's additional Surface Antigen marker.
Choose the Hepatitis B Immunity
Select the two-marker Hepatitis B Immunity blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy where suitable.
Attend your appointment
A trained healthcare professional collects the required venous blood sample.
Laboratory analysis
Your serum is analysed for Hepatitis B Immunity and Hepatitis B Surface Antigen.
Receive your results securely
Your authorised results are delivered securely and can be reviewed with occupational health, a GP or another appropriate healthcare professional.
When Will I Receive My Results?
The current expected turnaround for the Hepatitis B Immunity test is approximately 1 business day after the sample reaches the laboratory.
Both markers are established Hepatitis B serology investigations and can generally be processed rapidly.
The laboratory completes analysis, quality-control procedures and authorisation before reporting.
Turnaround begins from laboratory receipt rather than necessarily from the exact time your blood is collected.
If Surface Antigen is reactive or another result requires confirmation, additional laboratory assessment may extend the complete diagnostic process.
Understanding Your Results
The two results should be interpreted together.
Detectable protective Hepatitis B surface antibodies indicate an immune response to the HBV surface antigen.
Following a completed vaccination course, anti-HBs at or above the recognised protective threshold supports an adequate vaccine response.
A low or undetectable anti-HBs result can mean that a protective response has not developed, vaccination was incomplete or measurable antibody levels have declined.
Declining antibody concentrations do not necessarily mean that every previously vaccinated immunocompetent person has lost all immune memory.
A negative Hepatitis B Surface Antigen result means HBsAg was not detected.
A positive HBsAg result raises concern for current Hepatitis B infection and requires wider clinical and laboratory assessment.
If the aim is to distinguish vaccination-derived immunity from immunity after previous natural infection, Hepatitis B Core Antibody – Total provides important additional information because vaccination alone does not produce core antibodies.
Why Book With London Blood Tests?
London Blood Tests provides private access to a practical two-marker Hepatitis B profile for people who need information about immunity and current HBsAg status.
Assesses protective immunity - Measures the antibody response associated with Hepatitis B protection.
Includes Hepatitis B Surface Antigen - The current live profile also checks an important marker of current infection.
Relevant to occupational health - Useful for healthcare workers and other people who may require documented immunity.
Useful after vaccination - Can confirm whether an adequate antibody response has developed.
Fast laboratory turnaround - Results are expected in approximately 1 business day.
Professional phlebotomy - Clinic and suitable home or hotel collection options are available.
Secure reporting - Receive your authorised laboratory results confidentially.
Clear pricing - The Hepatitis B Immunity test costs £38.
Private Hepatitis B Immunity Blood Test in London
London Blood Tests provides private Hepatitis B Immunity testing in London for people who need to assess protective antibodies following vaccination or previous infection.
The current live profile costs £38 and contains 2 biomarkers: Hepatitis B Immunity and Hepatitis B Surface Antigen.
Results are expected approximately 1 business day after laboratory receipt.
Where the overall Hepatitis B status remains unclear, a broader Hepatitis B Panel or Hepatitis B Core Antibody testing may be appropriate.