Which vaccines do they use against meningitis for people ages 12+?

Meningitis Vaccine: Vaccines will protect most, but not all, kinds of Meningococcal disease. In the United States, two vaccines that can prevent Meningococcal disease are: Meningococcal conjugate vaccine which can be given to people age 2- 55 and Meningococcal polysaccharide vaccine can be used when mcv4 is not available. It is the only licensed vaccine for people over 55. Both vaccines protect about 90% of patients.