This is a study to assess the safety, tolerability, and immunogenicity of V419 (PR5I) when administered as an infant series at 2, 4, and 6 months of age followed by a toddler dose of DAPTACEL™, Prevnar 13™ and PedvaxHIB™ at 15 months of age. The study will determine whether subjects who receive V419 have a similar immune response to the vaccine compared to subjects who receive licensed component vaccine controls.