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Hepatitis B and immunity
Male.38Yrs.186cms.90Kgs. I completed 3 dose hepatitis B vaccine last year. When immunity was checked after 1 year it was 5 mIU/ml. I remember 12 years back hepatitis B ,3 dose vaccine was taken and the immunity check at that time was also negative. Now I think there is something odd with my body. I have restarted the 3 dose vaccination again . Most probably the immunity test will come negative this time as well. What can be the reason ?.
Answers (10)
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-Your Anti-HBs level of 5 mIU/mL suggests inadequate antibody response after Hepatitis B vaccination
-Some individuals are natural low/non-responders despite being otherwise healthy
Next Steps
-Complete the repeat Hepatitis B vaccine series as advised
-Recheck Anti-HBs titre 1–2 months after the last dose
-Do HBsAg and Anti-HBc tests once to rule out past/current Hepatitis B infection
Health Tips
-Do not panic as this can occur even in healthy individuals
-Factors like obesity, smoking, diabetes, genetics, or vaccine-related issues can reduce response
-Maintain healthy lifestyle habits and regular follow up
-Contact me anytime on Practo for further consultation
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Immunity usually remains for a year May very from manufacturers
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Some people are naturally low or non responders to the Hepatitis B vaccine despite being otherwise healthy, so this does not automatically mean something is seriously wrong with your body.
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The situation you've described is a known clinical phenomenon where an individual is a 'Vaccine Non-responder'. Approximately 5-10% of healthy individuals do not develop a protective antibody titre (>10\text{ mIU/ml}) even after a standard 3-dose Hepatitis B vaccine series. Since your titre is 5 mIU/ml, it is below the protective threshold. This doesn't mean something is 'odd' with your body in a dangerous way, but rather that your immune system's specific pathway for the Hepatitis B surface antigen isn't getting activated effectively by the standard vaccine
Next Steps
Alternative Vaccination Strategy: "Sometimes, repeating the series with a Double Dose or using a different brand/type of vaccine (like a third-generation pre-S1/pre-S2 vaccine) can help trigger a response in non-responders."
Intradermal Route: "Discuss with your doctor about getting the vaccine through an Intradermal route instead of Intramuscular, as this can sometimes bypass the non-responsiveness."
Rule out Chronic Infection: "To be 100% sure, get an HBsAg (Surface Antigen) test done once to confirm you aren't already a chronic carrier, which would explain why the vaccine isn't producing antibodies
Health Tips
For a specialized vaccination protocol designed for non-responders and to review your complete medical history, please book a full consultation session via my Practo profile."
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Dr. Gaurav Jaiswal
General Physician
6 yrs exp
Jhansi
Avoid fried and spicy food
Water intake more
Do connect and consult
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Dr. Pragya Choudhary
General Physician
5 yrs exp
Jaipur
Please tell detailed history
Next Steps
Please book online consultation on Practo for better consultation
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Dr. Suraj Sharma
General Practitioner
4 yrs exp
Jaipur
Do consult
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Dr. Ravi Kumar Nadella
General Physician
18 yrs exp
Hyderabad
Abnormal immune response
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Dr. Ayush Khandelwal
General Physician
1 yrs exp
Delhi
Your reports do not necessarily mean that something is seriously wrong with your body. A small percentage of healthy people do not develop high detectable antibody levels even after vaccination, and this can happen due to genetic or immune-response variation. In many cases, repeating the vaccine series or using a different vaccine schedule helps improve immunity. Please do not panic — this condition is manageable and does not automatically mean you have a disease or weak immunity.
Next Steps
The important step is to first rule out active Hepatitis B infection with proper blood tests, which is usually straightforward.
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.