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A 25-year-old male asked:

i only hd 2 dse hep b vacc 4 yrs ago. now my anti hbs titer is only 30( cut off value is 10). do i need to get a third dose or just a booster vaccine?

1 doctor answer2 doctors weighed in
Dr. Hunter Handsfield
Infectious Disease 53 years experience
Same thing: Booster and third dose of HBV vaccine are the same thing. Even though your blood test shows you are protected, probably for life, getting the final dose still is recommended.

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Last updated Apr 21, 2019

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