- Healthy 2-month old infants (42 to 98 days)
- Available for the duration of the study and reachable by telephone
- Previous vaccination with licensed or investigational pneumococcal, Hib conjugate,
diphtheria, tetanus, pertussis, polio, or meningococcal vaccine
- Previous anaphylactic reaction to any vaccine or vaccine-related component.
- Bleeding disorder, immune deficiency or suppression, or significant chronic or
- Receipt of blood products or gamma globulin