How frequently is meningitis caused by Enterobacter infections?

Updated: Jun 18, 2019
  • Author: Susan L Fraser, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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In 1993, Durand et al published a review of 493 episodes of acute bacterial meningitis. [21] This study involved patients aged 16 years or older admitted to Massachusetts General Hospital from January 1962 through December 1988. Gram-negative bacilli were the etiologic agents in 4% and 38% of community-acquired and nosocomial meningitis, respectively. In community-acquired infections, Enterobacter was isolated in one of the 9 cases of meningitis caused by gram-negative bacilli (E coli 4 times, Klebsiella species 3 times, and Proteus once) and in 5 of the 57 episodes of nosocomial meningitis (E coli 17 times, Klebsiella species 13 times, Pseudomonas species 6 times, and Acinetobacter species 6 times).

Other series were reported from various countries (United States, Iceland, United Kingdom, Senegal, Brazil). Gram-negative bacilli were not among the 5 most common causes of meningitis in any of these countries.

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