The Group A Group C Meningococcal Conjugate Vaccine is recommended. Meningococcal Polysaccharide Vaccine is a prophylactic vaccine that is an effective way to prevent meningitis. Meningococcal vaccines are divided into Group A and Group A-C conjugate vaccines. both Group A and Group A-C conjugate vaccines are included in the free program and are therefore recommended. Meningitis is a type of purulent meningitis that is acute in onset, highly contagious, rapid in progression, and has a high case fatality rate. It is often characterized by high fever, nausea and vomiting, severe headache, skin petechiae and ecchymosis, impaired consciousness, and even shock and death in severe cases. Meningococcus is transmitted through the bloodstream and is easily infected, so it is recommended to complete two doses of meningitis vaccine. Stay for half an hour after vaccination and leave if no special circumstances arise. Avoid bathing for 24 hours to avoid adverse reactions to infection. Ensure that you eat a regular, light diet and drink plenty of warm water. Be sure to pay attention to hygiene and maintain a clean environment. Risk tip: Pay more attention to observe your health condition in general, and seek medical attention once you find yourself with fever, severe headache and other symptoms.