In low risk children initially receiving a recombinant vaccine, 12.5% (26 of 208) and none (0 of 36) retained protective anti-HBs titers at 5 and 7 years of age, respectively. Of those who did not ...

Hepatitis B surface antigen vaccine (recombinant) 5mcg/0.5mL ... and give a booster dose when the anti-HBs level declines to <10 mIU/mL. Refer to ACIP recommendations and to the package insert ...