Staphylococcus intermedius

  • General information

    • the following information is not yet verified
      Family: Staphylococcaceae

      Natural habitats
      They are part of the normal skin and oral flora of dogs and many other animals.

      It is a very rare human pathogen.

      Most cases are associated with exposure to animals, mostly dogs.

      However, they can cause infection in healthy individuals even without exposure to animals.

      Clinical significance
      They have a relatively low virulence and can cause infections in patients with lowered resistance, especially in immune compromised patients.

      CNS infections occur in implantation of foreign objects, such as intravenous catheters or bone prostheses.

      Is repeatedly CNS, in pure culture or in mixed culture isolated from the material, then this confirms the presence of an infection.

      The correct identification of CNS is necessary in order to get an idea of the pathogens in this group.

  • Gram stain

    • the following information is not yet verified
      Gram positive cocci,

      1.0-1.5 µm

      that occur in irregular grape-like clusters and, less often, single and in pairs, tetrads, and in short chains.

  • Culture characteristics

    • the following information is not yet verified

      S. intermedius maybe misclassified as S. aureus

      Facultative anaerobic

      BA: large, entire, smooth, glossy, translucent, slightly convex, β-hemolytic and usually non pigmented

      They can give a double hemolysis zone on blood agar
      (clear narrow inner zone and a broad turbid outer zone)

      McConkey: growth

      BBAØ: growth

  • Characteristics

  • References

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