- Planned administration of a vaccine not foreseen by the study protocol since birth and during the period starting 30 days before the administration of the first dose and ending 30 days after the last dose of the three-dose primary vaccination course, with the exception of licensed Neisseria meningitides conjugate vaccines or Bacillus Calmette-Guérin (BCG) vaccine that can be given in between study visits or after the third visit, provided they are given preferably with a 4 weeks interval but not less than 3 weeks apart from the study vaccine doses.