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Francisella philomiragia

  • General information

    • the following information is not yet verified
      Is an intracellular bacteria, which includes mycobacteria, Listeria, Legionella, Brucella, Coxiella and Rickettsia

      Taxonomy
      Family: Francisellaceae

      Natural habitat
      They are widely distributed in the natural environment (salty water) and is of low virulence, although it may cause disease in immunocompromised individuals.

      Clinical significance
      Francisella philomiragia, is of low virulence and occasionallycauses disease in immunocompromised individuals.
      They may cause pneumoniae or fever with or without organ manifestation, such as meningitis or peritonitis

      Human infections caused by F. philomiragia are rare and considered opportunistic infections, infecting primarily patients with underlying immunocompromissing conditions.

  • Gram stain

    • the following information is not yet verified
      They are facultative intracellular parasites of macrophages.

      Faintly staining,

      tiny gram negative coccoide rods, rarely chained,

      with bizarre spherical forms on primary isolation

      0.7 x 1.7

      highly pleomorphic

  • Culture characteristics

    • the following information is not yet verified

      Obligate aerobic

      Colonies are white-gray, smooth, and mucoid,

      no agar discoloration

  • Characteristics

  • References

    • James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition

    • CDC


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