Number of meningitis cases for 2014

Number of meningitis cases for 2014
Number of meningitis cases for 2014 | Courtesy of
The year 2014 saw the lowest number of notified bacterial meningitis cases since 1991, amounting to 134 cases.

Pneumococcus causes the majority of bacterial meningitis sicknesses. The second most common cause is meningococcus. Some other causes are haemophilus influenza and listeriamonocytogenes, among other kinds of streptococci.

In 2014, there were 53 reported meningitis cases caused by streptococcuspneumoniae. This demonstrates an ongoing declines compared to the 100 yearly cases that made up the average for the years 2000 to 2007. This was from the time before researchers developed the seven-valent pneumococcal conjugate vaccine and added it to the childhood immunization program.

In addition, there is an overall decrease of approximately 30 percent in the incident rate of invasive pneumococcal disease throughout the U.S. population. This percentage accounts for the 734 cases from 2014 compared to the 1,056 annual cases from 2000 to 2007.

The eight most recent pneumococcal meningitis cases, which occurred in children five years old and under, were related to the serotypes that are used in the 13-valent pneumococcal conjugate vaccine. This vaccine has been included in the childhood immunization program beginning in 2010.

The purulent meningitis cases that had other etiology has risen by five cases compared to 2013. Experts attribute this to a rise in listeria meningitistilfaelde, which was part of an outbreak in 2014.

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