Antibody Persistence and Booster Dose Response in Subjects Who Received Menactra® Three Years Earlier in Study MTA26

Inclusion Criteria : * Subjects received one or two doses of Menactra® vaccine in study MTA26 and provided a blood sample after the last dose received * At 3 to \< 6 years of age and were never vaccinated against meningococcal disease (with either the study vaccine or another vaccine). * Informed consent form signed and dated by the parent(s) or another legally acceptable representative. * Subject and parent/legal guardian able to attend all scheduled visits and comply with all study procedures. Exclusion Criteria : * Participation in the active (i.e., treatment) portion of another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the first study vaccination * Planned participation in another clinical trial during the present trial period. * Known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy. * Known or suspected systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the study vaccine or to a product containing any of the substances present in the study vaccine. * Chronic illness at a stage that could interfere with trial conduct or completion, in the opinion of the investigator. * Received blood or blood-derived products in the past 3 months. * Received any vaccine (other than desensitization therapy …