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Parvimonas micra

  • General information

    • the following information is not yet verified
      Taxonomy
      Family: Peptostreptococcaceae
      Formerly Peptostreptococcus micros

      Natural habitats
      Gram positive anaerobic cocci are part of the normal microbiota of the mouth, upper respiratory and gastrointestinal tracts, female genitourinary system and skin.

      Gram positive anaerobic cocci constitute 1-15% of the normal oral micobiota.
      P. micros is usually considered to be the predominant species of gram-positive anaerobic cocci in the oral micribiota and
      P. anaerobius and Finegoldia magna are also present in the oral cavity.

      Clinical significance
      Most infections involving anaerobic cocci ar polymicrobial.

      Isolation in pure culture is rare.

  • Gram stain

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

      vary in size 0.3-2.0 µm

      lying in pairs, short chains, terads and small clusters, or irregular masses

  • Culture characteristics

    • the following information is not yet verified

      Obligate anaerobic

      BBAØ
      Small colonies; typically white, glistening and domed and often surrounded by a distinctive yellow-brown halo of discolored agar up to 2mm wide.

  • Characteristics

  • References

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


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