4 doctors weighed in:

How long could hepatitis b vaccine stay in your system?

4 doctors weighed in
Dr. Larry Lutwick
Internal Medicine - Infectious Disease
3 doctors agree

In brief: Unclear.

If you are asking how long the vaccine is effective for, the three dose regimen can last a lifetime.

In brief: Unclear.

If you are asking how long the vaccine is effective for, the three dose regimen can last a lifetime.
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