Meningitis is an acute inflammation of the protective membranes covering the brain and spinal cord , known collectively as the meninges. The inflammation may be caused by infection with viruses , bacteria or other microorganisms , and less commonly by certain drugs. Some forms of meningitis are preventable by immunization with the meningococcal , mumps , pneumococcal , and Hib vaccines. In , meningitis occurred in about
All about bacterial meningitis
Meningitis - NHS
Learn more. Meningitis is an infection of the membranes meninges that protect the spinal cord and brain. When the membranes become infected, they swell and press on the spinal cord or brain. This can cause life-threatening problems. Meningitis symptoms strike suddenly and worsen quickly. Bacteria or a virus can cause meningitis.
Bacterial meningitis is the most serious type of meningitis. It can lead to death or permanent disability. It is a medical emergency. Meningitis affects the meninges, the membranes that surround the brain and spinal cord and protect the central nervous system CNS , together with the cerebrospinal fluid. In , the mortality rate for bacterial meningitis was 34 percent , and 50 percent of patients experienced long-term effects after recovery.
Bacterial meningitis is serious. Some people with the infection die and death can occur in as little as a few hours. However, most people recover from bacterial meningitis. Those who do recover can have permanent disabilities, such as brain damage, hearing loss, and learning disabilities.