Safety and Immunogenicity of GSK Meningococcal Group B Vaccine and 13-valent Pneumococcal Vaccine Administered Concomitantly With Routine Infant Vaccines to Healthy Infants

This study is divided into three timepoints: Epoch 1 - Primary: Day 1 to Day 301 Epoch 2 - Secondary: Day 301 to Day 331 Epoch 3 - Safety follow-up: Day 331 to the end of the study (Day 481 or Day 661). For participants who have not yet reached the 6-month safety follow-up after their last dose at the time Protocol Amendment 7 takes effect, visit 7 takes place on Day 481. In addition to receiving the study vaccines, infants also receive non-study vaccines such as Diphtheria, tetanus toxoids and acellular pertussis adsorbed vaccine (DTPa, Infanrix) and Haemophilus influenzae type b Conjugate Vaccine (Hib, Hiberix) to minimize disruption to the standard infant vaccination schedule caused by participation in this study. Participants receive rMenB+OMV NZ (Bexsero) concomitantly with PCV13 (Prevnar13) and other routine infant vaccines (Pediarix, Hiberix, Rotarix, M-M-R II, Varivax) at 2, 4, 6, and 12 months of age. Participants who have received three PCV13 doses before 12 months of age but have not yet received their fourth booster dose receive either PCV13 or PCV20 at 12 months of age (Visit 5).