Meningococcus serogroup AC (combined with Haemophilus influenzae type b)

AC meningococcal vaccine can be used to prevent epidemic cerebrospinal meningitis caused by meningococcal groups a and c, and the first vaccination can start at six months of age; Haemophilus influenzae type b conjugate vaccine can prevent invasive diseases caused by Haemophilus influenzae type b.