The correct term for the Meningococcal A-C Vaccine is Meningococcal A+C Vaccine, which is a vaccine against epidemic cerebrospinal meningitis caused by group A bacteria and group C bacteria. Care should be taken to exclude illnesses such as colds and tuberculosis before administering this type of vaccine. Meningococcal A+C vaccine can prevent epidemic cerebrospinal meningitis caused by group A bacteria and group C bacteria. However, care should be taken to exclude some illnesses, such as colds, fever, and active tuberculosis, before administering Meningococcal A+C vaccine. In addition, if the child has an allergy to the components of the influenza A+C vaccine, vaccination should be prohibited. In the three years following the administration of the Influenza A+C Vaccine, care should be taken to avoid repeating the Influenza A+C Vaccine, as this may jeopardize the child’s health. Influenza A+C vaccination may cause adverse reactions such as low-grade fever and loss of appetite. Children should be closely monitored and consult a doctor if the symptoms do not subside or if there are other adverse reactions. The injection of Influenza A+C Vaccine should be taken care of at designated vaccination centers and administered by professional healthcare personnel.