All students must have a series of three Hepatitis B vaccinations (0, 1, and 6 months), and a post-vaccine surface antibody titer (to demonstrate immunity). The earliest the antibody titer can be ...

Hepatitis B vaccine (recombinant ... seroconverted by Month 7. The geometric mean antibody titer (GMT) was 713 mIU/mL. Of these, 97% had seroprotective levels (≥10 mIU/mL).

Those with nonprotective titers (<10 mIU/mL ... We examined the long term persistence of antibody to hepatitis B surface antigen (anti-HBs) in children ages 4-13 years whose mothers were HBsAg ...

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Of the 102 children (group 1a) who had received 3 doses of a plasma-derived hepatitis B vaccine as infants, 42 (41%) had anti-HBs titers ≥10 ... but lost protective antibody and were boosted ...