CA
A 35-year-old member asked:
How long do the hepatitis a and b vaccines protect you?
3 doctor answers • 15 doctors weighed in
Dr. Marcus Degrawanswered
Pediatrics 24 years experience
Likely a lifetime: This question has many variables, but our clinical and scientific/experimental experience with these vaccines suggests that life-long immunity is likely. This is demonstrated by current recommendations of not needing booster doses, even when titers are zero in a person who has been fully vaccinated. These vaccines produce strong anamnestic responses in our bodies to confer longterm protection.
Created for people with ongoing healthcare needs but benefits everyone.
6.3k viewsReviewed >2 years ago
Dr. Craig MacArthuranswered
Pediatric Hematology and Oncology 36 years experience
Not known for sure: Antibody to the vaccines can be detected for up to 15 years for both. The actual immunity to infection may be longer than that as cellular immunity may last longer.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
Dr. Claude Parolaanswered
Internal Medicine 42 years experience
Varies: Immunization should normally protect you for life, but in some individuals, the immunity fades away, in this case a booster shot may be needed, others may never be protected even after multiple series of shots, specially for hepatitis b.
Created for people with ongoing healthcare needs but benefits everyone.
5.8k viewsReviewed >2 years agoMerged
Last updated Jul 16, 2019
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