13 doctors weighed in:

How long do the hepatitis a and b vaccines protect you?

13 doctors weighed in
Dr. Marcus Degraw
Pediatrics
10 doctors agree

In brief: 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.

In brief: 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.
Dr. Marcus Degraw
Dr. Marcus Degraw
Thank
Dr. Craig MacArthur
Pediatrics - Hematology & Oncology
1 doctor agrees

In brief: 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.

In brief: 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.
Dr. Craig MacArthur
Dr. Craig MacArthur
Thank
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