Hepatitis B Immunity (IgG)

Hepatitis B Immunity Test (Anti-HBs IgG Antibody Test)
Check Your Protection Against Hepatitis B

Our Hepatitis B Immunity Test (Anti-HBs IgG) measures the level of protective antibodies against the Hepatitis B virus (HBV) in your blood. This quantitative antibody test helps determine whether you have developed immunity following vaccination or recovery from a previous Hepatitis B infection.

Ideal for healthcare workers, students, travellers, employers, and anyone wishing to confirm their Hepatitis B immune status, this convenient home blood test provides accurate laboratory analysis and confidential results.

What Is Hepatitis B?

Hepatitis B is a viral infection that affects the liver and is transmitted through contact with infected blood and bodily fluids. While many infections resolve naturally, some individuals develop chronic infection that can lead to serious long-term health complications.

Potential complications include:

Chronic Hepatitis B infection
Liver cirrhosis
Liver failure
Hepatocellular carcinoma (liver cancer)

Vaccination remains the most effective way to prevent Hepatitis B infection and its complications.

What Does This Test Measure?

This test measures Hepatitis B Surface Antibodies (Anti-HBs IgG) in your blood.

These antibodies are produced when:

You have successfully responded to Hepatitis B vaccination
You have recovered from a previous Hepatitis B infection

The presence of sufficient Anti-HBs antibodies generally indicates protective immunity against future Hepatitis B infection.

Why Take a Hepatitis B Immunity Test?

This test can help:

✓ Confirm successful Hepatitis B vaccination

✓ Verify immunity for healthcare employment or university placements

✓ Meet occupational health requirements

✓ Assess protection before international travel

✓ Determine whether a booster vaccination may be needed

✓ Provide reassurance regarding your Hepatitis B immune status

✓ Support workplace compliance and vaccination records

Who Should Consider This Test?

This test is particularly suitable for:

Doctors
Nurses
Dentists
Medical and healthcare students
Laboratory personnel
Emergency service workers
Care home staff
Travellers visiting high-risk regions
Individuals who have completed a Hepatitis B vaccination course
Employers requiring evidence of immunity
Sample Requirements
Sample Type

Finger-Prick Blood Sample

Collection Method

Simple home blood collection kit supplied with detailed instructions.

Preparation

No fasting or special preparation is required.

Understanding Your Results

Your result will be reported as a quantitative Anti-HBs antibody concentration measured in mIU/mL (milli-International Units per millilitre).

Anti-HBs Below 10 mIU/mL

Result: <10 mIU/mL This result is generally considered non-protective and indicates that you may not have adequate immunity against Hepatitis B. Possible explanations include: No previous vaccination Incomplete vaccination course Poor vaccine response Waning antibody levels over time Further vaccination or booster doses may be recommended following consultation with a healthcare professional. Anti-HBs 10–99 mIU/mL Result: 10–99 mIU/mL This level is considered protective and indicates immunity against Hepatitis B. Most individuals within this range are regarded as protected from infection. Depending on occupational requirements and exposure risk, further monitoring may occasionally be advised. Anti-HBs 100–999 mIU/mL Result: 100–999 mIU/mL This result indicates a strong protective immune response and is often associated with long-term immunity following successful vaccination or recovery from previous infection. Healthcare employers and occupational health providers commonly regard levels above 100 mIU/mL as evidence of a robust vaccine response. Anti-HBs ≥1000 mIU/mL Result: ≥1000 mIU/mL Very high antibody concentrations are commonly seen shortly after vaccination or booster doses and indicate a strong immune response to Hepatitis B surface antigen. Important Information About Immunity Protective immunity is generally accepted at 10 mIU/mL or above. However, antibody levels naturally decline over time, even in individuals who remain protected through long-term immune memory. Therefore, a lower antibody level does not always mean protection has been completely lost. Clinical interpretation should always consider: Vaccination history Occupational exposure risk Medical history Current healthcare guidance Occupational Health Guidance This test is widely used by occupational health providers, universities, and healthcare employers to assess Hepatitis B immunity. Many NHS Trusts and occupational health services regard: ≥10 mIU/mL as evidence of protection ≥100 mIU/mL as evidence of a good vaccine response and robust immunity Requirements may vary depending on workplace exposure risks and local occupational health policies. Why Check Your Hepatitis B Immunity? Many individuals receive the Hepatitis B vaccine years before entering healthcare professions, travelling abroad, or changing employment. Since antibody levels may decrease over time, testing provides objective evidence of your current immune status and helps determine whether additional vaccination may be beneficial. Confirming your immunity can be particularly important if you: Work in healthcare settings Have occupational exposure to blood or bodily fluids Require proof of immunity Plan to travel internationally Need reassurance about your protection status Benefits of Home Testing Convenient home sample collection No GP appointment required UK laboratory analysis Quantitative antibody measurement Secure online reporting Fast turnaround times Confidential service Professional customer support Why Choose Repose Healthcare? At Repose Healthcare, we are committed to providing accessible, reliable, and confidential diagnostic testing. Our services offer: Accredited UK laboratory testing Easy-to-use home collection kits Secure online results portal GDPR-compliant data protection Fast turnaround times Dedicated customer support Take control of your health and confidently assess your Hepatitis B protection with our Hepatitis B Immunity (Anti-HBs IgG) Test. Test Summary Test Component Description Biomarker Hepatitis B Surface Antibody (Anti-HBs IgG) Sample Type Finger-Prick Blood Sample Purpose Assess immunity to Hepatitis B Protective Threshold ≥10 mIU/mL Strong Immune Response ≥100 mIU/mL Collection Method Home Blood Collection Kit Suitable For Vaccination confirmation, occupational health, travel, healthcare workers Results Quantitative Laboratory Report Frequently Asked Questions What is an Anti-HBs test? An Anti-HBs test measures antibodies produced against the Hepatitis B surface antigen. These antibodies indicate whether you have developed immunity following vaccination or previous infection. What level indicates immunity to Hepatitis B? An Anti-HBs level of 10 mIU/mL or higher is generally considered protective and indicates immunity against Hepatitis B infection. Can I use this test to prove immunity for work? Yes. Many healthcare employers, universities, and occupational health providers accept Anti-HBs antibody testing as evidence of Hepatitis B immune status. Do I need to fast before the test? No. Fasting is not required. Can this test tell if I currently have Hepatitis B? No. This test assesses immunity only. It does not diagnose an active Hepatitis B infection. Separate Hepatitis B screening tests are required to assess current infection status. How long does immunity last after vaccination? Many individuals remain protected for decades following successful vaccination, even when measurable antibody levels decline over time due to immune memory.