Mycobacterium intermedium

Description

• Eugonic, smooth and photochromogenic colonies on Löwenstein-Jensen medium.

• Growth on Löwenstein-Jensen medium at 22 °C, 31 °C, 37 °C and 41 °C,, within 2–3 weeks.
• Susceptible to ethambutol and rifampin.
• Resistant to isoniazid and streptomycin.

• Phylogenetic position between rapidly and slowly growing mycobacteria.
• M. asiaticum is phenotypically very similar, but can be distinguished by its growth at 22 °C, and by its dysgonic growth.

  Pathogenesis

• Pulmonary disease
• Biosafety level 2

  Type strain

• Repeatedly isolated from sputum from a patient with pulmonary disease.