Mycobacterial infections

    Cards (2)

    • general characteristics
      • gram positive, non motile, non sporing, non capsulate aerobic rods
      • more than 85 species have been identified
      • mostly found in soil and fresh water
      • in liquid culture they often appear to grow as filaments because of the mycolic acid in the cell wall
    • cell envelope
      confers resistance to environmental stresses such as
      • disinfectants
      • host defences
      • antibiotics
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