Corynebacterium propinquum

  • General information

    • the following information is not yet verified
      The pathogenic potential of coryneform bacteria has been underestimated

      Family: Corynebacteriaceae

      Natural habitats
      They are part of the normal oropharyngeal flora.

      Clinical significance
      This organism has not yet been fully recognized as a respiratory infection caused by C. propinquum.
      Gram staining of the purulent sputum is an essential tool to evaluate wheter C. propinquum is a respiratory pathogen or not, because this organism is a commensal bacteria.

      Corynebacterium species are becoming recognized as an increasing cause of opportunistic infections.

      Most of the respiratory disease occurred in immunosuppressed hosts.

  • Gram stain

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

      irregularly shaped (‘coryneforms”), they are arranged as single cells, in pairs, in V forms, in palisades, or in clusters with

      a so-called Chinese-letter appearance.

      Club-shaped rods are observed in true members of the genus Corynebacterium only

  • Culture characteristics

    • the following information is not yet verified

      Obligate aerobic
      Colonies are whitish, and somewhat dryish, entire edges and 1 to 2 mm after 24 hours of incubation.

      McConkey no growth

      BBAØ no growth

  • Characteristics

  • References

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

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