Elizabethkingia meningoseptica

  • General information

    • the following information is not yet verified
      Family: Flavobacteriaceae
      Formerly known as Flavobacterium and Chryseobacterium meningosepticum

      Natural habitat
      They are ubiquitous in the environment, in food products, and in an aqueous environment of the hospital, such as the sink, incubators, tapwater, or hemodialysis systems.

      They are not a member of the normal human flora.

      Clinical significance
      The species are also a rare cause of nosocomial infections including bacteremia, pneumonia, endocarditis and meningitis, especially in immunocompromised patients.

      Several studiessuggest that E. anophelis, and not E. meningoseptica, is the predominant human pathogen of this genus, but the identification of this species is difficult.

  • Gram stain

    • the following information is not yet verified
      Gram negative rods,

      0.5 x 1.0-3.0 µm,

      filamentous forms also occur.

  • Culture characteristics

    • the following information is not yet verified

      Obligate Aerobic

      BA: colonies are smooth, shiny and quite large (1-2 mm after 24 hours) produce no or weak yellow or light salmon-colored pigment after 2-3 days.

      The greyish discoloration around the colonies on blood agar is due to the proteases & gelatinase.

      McConkey: they grow poorly or not at all
      (26% of isolates)

      BBAØ: no growth

  • Characteristics

  • References

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