This article is part of The Dallas Morning News’ initiative to answer questions about vaccines. Got a question? Ask us here. Parents who are worried about giving their child too many vaccinations at ...

• HBsAg-negative mother: administer 1 dose of monovalent HepB vaccine within 24hrs of birth for all medically stable infants ≥2000g. For infants <2000g, give 1 dose at chronological age 1 month or ...