Many people carry this bacteria in their throats, but almost all of them build up a natural immunity before it can affect the bloodstream. The disease strikes only one in every 100,000 people or about 2,800 Americans each year. If caught early enough, the disease usually can be treated with antibiotics. Meningitis is spread through direct contact with oral secretions, including respiratory droplets from the nose and throat of an infected person. Delirium and coma can also occur.
Immunity lasts three to five years.
A single dose of the vaccine is recommended, however, the vaccine does not protect against all serogroups and will not totally eliminate the risk of disease. Missouri Dept. of Health. Copyright 1998 Southwest Missouri State University.