Immunogenicity, Safety and Tolerability, of Chiron Meningococcal C Conjugate Vaccine Administered to Healthy Premature and Non Premature Children of 3 Months of Age

Inclusion Criteria: * Healthy children of 11 to 15 weeks of age Exclusion Criteria: * Children who previously received any kind of Meningococcal C vaccine, DTaP-IPV-HBV-Hib vaccine or a Hepatitis B vaccine at birth * Children who have a previous ascertained or suspected disease caused by N. meningitidis, Corynebacterium diphtheriae, Clostridium tetani, poliovirus, Hepatitis B or H. influenzae type b, culture proven Bordetella pertussis, or clinical condition of spasmodic cough for a period longer than or equal to 2 weeks associated with apnea or whooping * Children who have had household contact with and/or intimate exposure to an individual with culture proven N. meningitidis serogroup C or Bordetella pertussis, within the previous 60 days