The Full Wiki

More info on Mycobacterium intracellulare

Mycobacterium intracellulare: Wikis


Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.


From Wikipedia, the free encyclopedia

Mycobacterium intracellulare
Scientific classification
Kingdom: Bacteria
Phylum: Actinobacteria
Order: Actinomycetales
Suborder: Corynebacterineae
Family: Mycobacteriaceae
Genus: Mycobacterium
Species: M. intracellulare
Binomial name
Mycobacterium intracellulare
Runyon 1965, ATCC 13950

Mycobacterium intracellulare



Gram-positive, nonmotile and acid-fast short to long rods.

Colony characteristics

  • Usually smooth, rarely rough and nonpigmented colonies. Ageing colonies may become yellow.


Differential characteristics

  • M. intracellulare and Mycobacterium avium form the M. avium-intracellulare complex (MAIC). A commercially available hybridisation assay (AccuProbe) to identify all members of the MAIC exists. Furthermore, separate AccuProbes are available to identify either M. intracellulare or M. avium.
  • Remarkable ITS heterogeneity within different M. intracellulare isolates.


  • Most frequently encountered in pulmonary secretions from patients suffering from tuberculosis-like disease and from surgical specimens from such patients.
  • When isolated from human secretions, it is often the etiologic agent of pulmonary disease, although frequently isolated as apparent casual resident
  • Biosafety level 2

Type Strain

  • First isolated from fatal systemic disease in a child. Found in soil and water.

Strain ATCC 13950 = CCUG 28005 = CIP 104243 = DSM 43223 = JCM 6384 = NCTC 13025.


  • Cuttino, J., A. McCabe. 1949. Pure granulomatous nocardiosis: A new fungus disease distinguished by intracellular parasitism. American Journal of Clinical Pathology, 25, 1-34.
  • Runyon, E. 1965. Pathogenic mycobacteria. Advances in Tuberculosis Research, 14, 235-287.


Got something to say? Make a comment.
Your name
Your email address