Dataset from Study to Demonstrate Non-inferiority of GSK Biologicals' Hib-MenC Given With Infanrix™ Penta Versus NeisVac-C™ Given With Infanrix™ Hexa at 3, 5 Months of Age and Persistence Prior to a Hib-MenC Booster at 11 Months and Immunogenicity of the Booster

The purpose of this primary vaccination phase is to demonstrate the non-inferiority of two doses of Biologicals' Hib-MenC conjugate vaccine when given with Infanrix™ penta to infants (at 3 & 5m) compared to NeisVac-C™ given with Infanrix™ hexa. The purpose of the booster vaccination phase is to evaluate the immunogenicity, safety and reactogenicity of a booster dose of the Hib-MenC vaccine given with Infanrix™ penta at 11 m of age versus NeisVac-C™ given with Infanrix™ hexa, as well as the antibody persistence prior to the administration of the booster doses. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.