Infections caused by the bacterium Neisseria meningitidis, formerly called meningococcus. This organism is often resident in the nose or pharynx, and can become highly infectious and cause epidemics in confined communities such as military barracks and residential schools. It can cause meningitis, pneumonia, and, less commonly, septicemia and septic arthritis. All usually respond well to antibiotics; a vaccine was developed in 2005.
Subjects: Public Health and Epidemiology.