Meningitis causes: Difference between revisions

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==Overview==
==Overview==
==Causes==
Most cases of meningitis are caused by [[microorganisms]], such as [[viruses]], [[bacteria]], [[fungi]], or [[parasite]]s, that spread into the blood and into the [[cerebrospinal fluid]] (CSF).<ref name=Sherris>{{cite book | author = Ryan KJ, Ray CG (editors) | title = Sherris Medical Microbiology | pages = 876&ndash;9 |edition = 4th ed. | publisher = McGraw Hill | year = 2004 | isbn = 0838585299 }}</ref>  Non-infectious causes include [[cancer]]s, [[systemic lupus erythematosus]] and certain [[drugs]].  The most common cause of meningitis is viral, and often runs its course within a few days. Bacterial meningitis is the second most frequent type and can be serious and life-threatening. Numerous microorganisms may cause bacterial meningitis, but ''[[Neisseria meningitidis]]'' ("meningococcus") and ''[[Streptococcus pneumoniae]]'' ("pneumococcus") are the most common pathogens in patients without immune deficiency, with meningococcal disease being more common in children. ''[[Staphylococcus aureus]]'' may complicate neurosurgical operations, and ''[[Listeria monocytogenes]]'' is associated with poor nutritional state and alcoholicism. ''[[Haemophilus influenzae]]'' (type B) incidence has been much reduced by immunization in many countries. ''[[Mycobacterium tuberculosis]]'' (the causative agent of [[tuberculosis]]) rarely causes meningitis in Western countries but is common and feared in countries where tuberculosis is endemic.


==References==
==References==

Revision as of 21:03, 8 February 2012

Meningitis Main Page

Patient Information

Overview

Causes

Classification

Viral Meningitis
Bacterial Meningitis
Fungal Meningitis

Differential Diagnosis

Diagnosis

Treatment

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

Overview

Causes

Most cases of meningitis are caused by microorganisms, such as viruses, bacteria, fungi, or parasites, that spread into the blood and into the cerebrospinal fluid (CSF).[1] Non-infectious causes include cancers, systemic lupus erythematosus and certain drugs. The most common cause of meningitis is viral, and often runs its course within a few days. Bacterial meningitis is the second most frequent type and can be serious and life-threatening. Numerous microorganisms may cause bacterial meningitis, but Neisseria meningitidis ("meningococcus") and Streptococcus pneumoniae ("pneumococcus") are the most common pathogens in patients without immune deficiency, with meningococcal disease being more common in children. Staphylococcus aureus may complicate neurosurgical operations, and Listeria monocytogenes is associated with poor nutritional state and alcoholicism. Haemophilus influenzae (type B) incidence has been much reduced by immunization in many countries. Mycobacterium tuberculosis (the causative agent of tuberculosis) rarely causes meningitis in Western countries but is common and feared in countries where tuberculosis is endemic.

References

  1. Ryan KJ, Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed. ed.). McGraw Hill. pp. 876&ndash, 9. ISBN 0838585299.


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