Phase IIIb, Open, Randomized, Multicenter Study to Assess the Immunogenicity & Safety of GSK Biologicals' Combined DTPa-HBV-IPV/Hib Vaccine in Indian Infants When Given at 6-10-14 Weeks of Age or at 2-4-6 Months of Age

In this study, infants who were previously vaccinated with hepatitis B vaccine at birth will be randomly allocated into two groups: - one group of subjects will receive diphtheria, tetanus, acellular pertussis- hepatitis B virus-inactivated poliovirus/Haemophilus influenzae type b (DTPa-HBV-IPV/Hib) vaccine at 6-10-14 weeks of age - the second group of subjects will receive DTPa-HBV-IPV/Hib vaccine at 2-4-6 months of age