Which of the following microorganisms is a common cause of meningitis?
A. Enterococcus
B. Haemophilus influenza
C. Influenza virus
D. Chlamydia
ANS: B
Meningitis involves inflammatory central nervous system (CNS) disease generally caused by either viral or bacterial infection. The etiology of meningitis includes community-acquired, post-traumatic, aseptic, carcinomatous, or transferred from another bodily source. The most common organisms belong to such genera as Streptococcus, Neisseria (meningitides), Haemophilus (influenzae), Listeria, Staphylococcus (aureus) as well as gram-negative bacilli and gram-positive cocci. Meningitis can affect persons of all ages, including children.
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