Booster shot MenQuadfi shows promise for toddlers

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Aged 12 to 23 months on the day of inclusion * Participants who are healthy as determined by medical evaluation including medical history, physical examination, and judgement of the Investigator * Received at least one priming dose of licensed Nimenrix® or Menveo® vaccine during infancy before 12 months of age with an interval of at least 2 months between the last vaccination with Nimenrix® or Menveo® and the MenQuadfi® booster dose Exclusion Criteria: * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) * History of meningococcal infection, confirmed either clinically, serologically, or microbiologically * At high risk for meningococcal infection during the study (specifically but not limited to participants with persistent complement deficiency, with anatomic or functional asplenia, or participants traveling to countries with high endemic or epidemic disease) * Personal history of Guillain-Barré syndrome * Personal history of an Arthus-like reaction after vaccination with a tetanus toxoid containing vaccine * Known systemic hypersensitivity to any of the study intervention components, or history of a life-threatening reaction to the study intervention used in the study or to a product containing any of the same substances * Moderate or severe acute illness/infection (according to investigator judgment) or febrile illness (temperature ≥ 38.0°C \[≥ 100.4°F\]) on the day of study intervention administration. Prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided * Receipt of any vaccine (including COVID-19 vaccines) in the 4 weeks preceding the study intervention administration or planned receipt of any vaccine (including COVID-19 vaccines) in the 4 weeks following the study intervention administration except for influenza vaccination, which may be received at least 2 weeks before or 2 weeks after the study intervention. This exception includes monovalent pandemic influenza vaccines and multivalent influenza vaccines. * Previous vaccination with a Meningococcal C vaccine or Meningococcal B (MenB) vaccine * Receipt of immunoglobulins, blood or blood-derived products in the past 3 months * Receipt of oral or injectable antibiotic therapy within 72 hours prior to the first blood draw NOTE: The above information was not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.