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A COMPARATIVE STUDY OF THE DIPLOCOCCI OCCURRING IN EPIDEMIC CEREBRO-SPINAL MENINGITIS AND POSTERIOR BASIC MENINGITIS

M Wollstein1

  • 1Laboratories of the Rockefeller Institute for Medical Research, New York.

The Journal of Experimental Medicine
|October 30, 2009
PubMed

Insights

This study found no reliable differences between Diplococcus intracellularis strains from epidemic and posterior basic meningitis. Experiments show the posterior basic meningitis strain causes severe, fatal meningitis in monkeys, suggesting similar serum treatment efficacy.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Neurology

Background:

  • Meningitis is a serious infection affecting the central nervous system.
  • Distinguishing between different strains of meningitis-causing bacteria is crucial for effective treatment.
  • Diplococcus intracellularis is a known pathogen associated with meningitis.

Purpose of the Study:

  • To identify reliable criteria differentiating Diplococcus intracellularis strains from epidemic and posterior basic meningitis.
  • To evaluate the pathogenicity of Diplococcus intracellularis strains from posterior basic meningitis.
  • To determine the potential efficacy of antimeningitis serum for posterior basic meningitis.

Main Methods:

  • Comparative analysis of Diplococcus intracellularis strains from different meningitis types.
  • Infection experiments using monkeys to assess pathogenicity.
  • Observation of clinical signs and pathological changes in infected animals.

Main Results:

  • No reliable differentiating criteria were found between strains from epidemic and posterior basic meningitis.
  • Diplococcus intracellularis from posterior basic meningitis induced severe, rapidly fatal meningitis in monkeys.
  • Significant organic lesions of cerebral tissues were observed in experimental animals.

Conclusions:

  • The Diplococcus intracellularis strain from posterior basic meningitis exhibits high pathogenicity.
  • Antimeningitis serum may be effective for posterior basic meningitis, similar to epidemic meningitis.
  • Early administration of antimeningitis serum is recommended for both meningitis types.

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