Cerebral meningococcus is an infectious disease that can be transmitted through the secretions of the patient’s mouth and nose. The initial symptoms are not obvious, but meningococcal bacteria have the opportunity to invade the blood or the inner membrane of the spinal cord and brain, which can cause meningitis. Cocciemia and meningitis cause fever and shock in patients, which can be fatal.

People who are in close contact with meningococcal infections and those with immune system diseases are at higher risk of infection. In addition, they have been infected with other viruses, living in a crowded environment, suffering from chronic diseases, smoking and inhaling secondhand smoke. People also have the opportunity to get infected.

A tetravalent vaccine can prevent A, C, W-135, and Y meningococcus. At present, there are two major pharmaceutical companies in the world that provide meningococcal conjugate vaccine. Parents can check with the medical staff and select the most suitable vaccine for their children according to the actual situation.