The Meningococcal Vaccine is designed to protect against infections caused by the Neisseria meningitidis bacteria, which can lead to serious conditions like meningitis and bloodstream infections. This vaccine is particularly important for infants, adolescents, and people with certain health conditions, as they are at higher risk for these diseases. There are different types of meningococcal vaccines, including MenACWY and MenB, each targeting specific strains of the bacteria. Vaccination is typically recommended during childhood and adolescence, with booster doses given as needed to maintain immunity.