Outlook

The prognosis of meningitis depends on the severity and the cause of the illness.

• In those with severe bacterial meningitis or a very fast onset of illness, the death rate can be as high as 90%. If the person survives, even with proper treatment, long-term disabilities can result, including deafness, seizures, paralysis, blindness, or loss of limbs.

• In those with less severe cases of bacterial meningitis, the death rate can still approach 25%. Long-term disabilities are possible. The person may require a prolonged period of hospitalization and rehabilitation.

• For a person with viral meningitis, full recovery can take place in seven to 10 days.