Meningococcal meningitis can be fatal or cause great harm without prompt treatment; as many as one out of five people who contract the infection have serious complications. According to the Centers for Disease Control, about 15% of those who survive are left with disabilities that include deafness, brain damage, and neurological problems.
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Here's what you need to know about the symptoms of meningococcal meningitis and ways to prevent and treat it.
What Causes Meningococcal Meningitis?
Bacteria and viruses are the two main causes of meningitis. The bacterium Neisseria meningitidis, also called meningococcus, causes meningococcal meningitis. In children and teens, meningococcus is the most common cause of bacterial meningitis. In adults, it is the second most common cause.
Meningococcal bacteria may cause infection in a part of the body -- the skin, gastrointestinal tract, or respiratory tract, for instance. For unknown reasons, the bacteria may then spread through the bloodstream to the nervous system. When it gets there, it causes meningococcal meningitis. Bacteria can also enter the nervous system directly after severe head trauma, surgery, or infection.
Your risk for meningococcal meningitis increases if you are exposed to the bacterium that causes it. Your risk also increases if you've had a recent upper respiratory infection. Babies, children, and teens are at greatest risk.
What Are the Symptoms of Meningococcal Meningitis?
Symptoms of meningococcal meningitis may vary from case to case. The more common signs and symptoms include: