What is meningococcal disease?
Meningococcal
disease is a serious bacterial illness. It is a leading cause of bacterial
meningitis in children 2 through 18 years old in the United States. Meningitis
is an infection of the covering of the brain and the spinal cord.
Meningococcal
disease also causes blood infections.
About
1,000 – 1,200 people get meningococcal disease each year in the U.S. Even when
they are treated with antibiotics, 10-15% of these people die. Of those who
live, another 11%-19% lose their arms or legs, have problems with their nervous
systems, become deaf or mentally retarded, or suffer seizures or strokes.
Anyone
can get meningococcal disease. But it is most common in infants less than one
year of age and people 16-21 years. Children with certain medical conditions,
such as lack of a spleen, have an increased risk of getting meningococcal
disease. College freshmen living in dorms are also at increased risk.
Meningococcal
infections can be treated with drugs such as penicillin. Still, many people who
get the disease die from it, and many others are affected for life. This is why
preventing the disease through use of meningococcal vaccine is important for
people at highest risk.
There are
two kinds of meningococcal vaccine in the U.S.:
·
Meningococcal conjugate vaccine (MCV4) is the
preferred vaccine for people 55 years of age and younger.
·
Meningococcal polysaccharide vaccine (MPSV4) has been available since the 1970s. It is the only meningococcal
vaccine licensed for people older than 55.
Both
vaccines can prevent 4 types of meningococcal disease, including 2 of the 3
types most common in the United States and a type that causes epidemics in
Africa. There are other types of meningococcal disease; the vaccines do not
protect against these.
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