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Meningitis Causes

Viruses and bacteria that spread to or directly infect the central nervous system cause most cases of infectious meningitis.

About 90% of cases of viral meningitis are caused by one of the enteroviruses (e.g., coxsackievirus, echovirus, poliovirus). Mumps, herpesvirus, and arboviruses (transmitted by insect bites) also may cause viral meningitis. About 30% of mumps cases in people not vaccinated for the disease develop meningitis.

Common causes of bacterial meningi...Read the full article