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Stenotrophomonas maltophilia

  • General information

    • the following information is not yet verified
      Taxonomy
      Family: Xantomonadaceae
      Formerly: Xanthomonas maltophilia

      Malditof also has S. acidaminiphila, S. nitireducens, S. rhizophilia these are apathogenic

      Natural habitat
      In the environment, especially water and in the water from hospitals.

      Does not belong to the normal flora of the human being.

      Clinical significance
      It is an important pathogen of nosocomial (hospital-acquired infections) which is associated with a substantial morbidity and mortality, especially in weakened or immune compromised patients on a respirator.
      They are increasingly isolated.

      They have been isolated in, bacteriemia, pneumonia, UTI, eye infections, endocarditis, meningitis, peritonitis, cholangitis and soft tissue infections.

      S. maltophilia is also becoming more common in CF patients.

  • Gram stain

    • the following information is not yet verified
      A short to long straight Gram-negative rods,

      0.5-1.5 µm

  • Culture characteristics

    • the following information is not yet verified

      Obligate Aerobic

      The colonies are large, smooth, shiny, with irregular edges, lavender green to light purple pigment.

      On bloodagar a green discoloration under the colony.

      Mature colonies often exhibit surface stripes.

      McConkey growth, non lactose fermenter

      BBAØ no growth

      Odor ammonia (not always)

  • Characteristics

  • References


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