DTaP-IPV-Hep B-PRP~T Combined Vaccine Versus DTaP-IPV//PRP~T Combined Vaccine + Hep B Vaccine in Hep B Primed Infants

Study participants who received a first dose of recombinant Hep B vaccine at birth will receive either DTaP-IPV-Hep B-PRP\~T combined vaccine at 2, 4, and 6 months of age + 3 doses of Hep B vaccine or Hep B vaccine (Euvax B®) at 1 and 6 months of age and DTaP IPV//PRP\~T combined vaccine (Pentaxim™) at 2, 4, and 6 months of age, according to the official vaccination schedule for Hep B, DTaP, poliovirus, and Hib vaccinations in South Korea.