Infants weighing <2000g born to HBsAg positive or HBsAg unknown mothers should receive vaccine and hepatitis B immune globulin (HBIG) in accordance with ACIP recommendations if HBsAg status cannot ...

Infants born weighing <2,000 g to HBsAg-positive mothers should receive vaccine and HBIG within 12 hours after birth. Infants born weighing <2,000 g to mothers of unknown HBsAg status should ...

All currently available genetically engineered HBV vaccines use the A2 genotype, serotype adw. A study showing occult HBV infections in US blood donors demonstrated that none of the unvaccinated ...