Meningitis
There are many different bacteria and viruses that can cause
meningitis. In most instances, it is more common for
these viruses or bacteria to cause some other illness, such
as an ear infection, pneumonia or other illness. It is not
known why one individual develops meningitis when others exposed
to the same virus or bacteria don't get as sick, or don't
get sick at all.
The most common causes of bacterial meningitis:
-
Pneumococcal Disease (Streptococcus pneumoniae)
Pneumococcal disease is an infection caused by a type of bacteria called Streptococcus
pneumoniae. It can cause pneumonia, bloodstream infections, or meningitis.
-
Meningococcal
Disease
Meningococcal disease is an illness caused by a bacteria called Neisseria
meningitidis. It often causes meningitis but
it can also cause bloodstream infections, pneumonia, joint infections,
and other illness.
- Haemophilus influenzae, type b (Hib)
Until recently, Hib was one of the most important causes of bacterial
infection in young children. Hib may cause a variety of diseases such
as meningitis (inflammation of the coverings of the spinal column and
brain) , blood stream infections, pneumonia, arthritis and infections
of other parts of the body.
- The most common causes of viral meningitis is a group of
viruses known as enteroviruses, which includes coxsackieviruses
and echoviruses.
Some forms of meningitis may pose a risk for causing serious
illness among close contacts. These include meningococcal
meningitis and, in some specific circumstances, H. influenzae
type b meningitis. In these instances, there are preventative
actions that are recommended to protect close contacts.
Meningitis Basics
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