NeisVac-C Single Prime Study in Infants

Inclusion Criteria: * Subject is an infant aged 8 to 11 weeks at the time of first vaccination * Subject is clinically healthy as determined by the investigator's clinical judgment through collection of medical history and physical examination * Subject was born at full term of pregnancy (\>= 37 weeks) with a birth weight \>= 2 kg * The parent(s) or legally authorized representative of the subject provides written consent for participation * The parent(s) or legally authorized representative of the subject has the ability to understand and comply with the requirements of the protocol * The parent(s) or legally authorized representative and the subject will be available for the duration of the study * The parent(s) or legally authorized representative of the subject agrees to keep a subject diary Exclusion Criteria: * Subject has a history of severe allergic reactions or anaphylaxis, or has a known sensitivity or allergy to any components of the vaccines * Subject has had an acute or chronic infection requiring systemic therapy (antibiotic or antiviral) or other prescribed treatment within the 2 weeks prior to the first vaccination in this study * Subject has a rash or dermatologic condition which may interfere with injection site reaction rating * Subject currently has, or has a history of, any significant cardiovascular, respiratory, hepatic, renal, metabolic, autoimmune, rheumatic, hematological, neurological, or neurodevelopmental disorder * Subject has a disease, or is currently undergoing a form of treatment, or was undergoing a form of treatment within 30 days prior to study entry, that could be expected to influence immune response * Subject has received any blood products or immunoglobulins within 60 days of study entry * Subject has received a live vaccine within 4 weeks or an inactivated or subunit vaccine within 2 weeks of the scheduled first vaccination * Subject has previously been vaccinated against meningococcal C disease * Subject has a known or suspected immune dysfunction * Subject has a functional or surgical asplenia (e.g. due to a pathologic hemoglobinopathy, leukemia, lymphoma, etc.) * Subject was administered an investigational drug within six weeks prior to study entry or is concurrently participating in a clinical study that includes the administration of an investigational product * Subject or his/her parent(s) / legally authorized representative are in a dependent relationship with the study investigator or with a study team member; dependent relationships include close relatives (i.e. children, partner/spouse, siblings) as well as employees of the investigator or site conducting the study