Mycobacterium intermedium
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| Mycobacterium intermedium | ||||||||||||||
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| Mycobacterium intermedium Meier et al. 1993, ATCC 51848 |
Mycobacterium intermedium
Etymology: Latin; intermedium, meaning between, rapidly and slowly-growing mycobacteria.
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[edit] Description
Gram-positive, and nonmotile acid-fast coccobacilli (2.0µm x 2.6 µm).
Colony characteristics
- Eugonic, smooth and photochromogenic colonies (3–5mm in diameter) on Löwenstein-Jensen medium.
Physiology
- Growth on Löwenstein-Jensen medium at 22°C, 31°C, 37°C and 41°C, (optimal temperature between 31°C and 37°C), within 2-3 weeks.
- Susceptible to ethambutol and rifampin.
- Resistant to isoniazid and streptomycin.
Differential characteristics
- 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.
[edit] Pathogenesis
- Pulmonary disease
- Biosafety level 2
[edit] Type Strain
- Repeatedly isolated from sputum from a patient with pulmonary disease.
Strain 1669/91 = ATCC 51848 = CCUG 37583 = CIP 104542 = DSM 44049 = JCM 13572
[edit] References
- Meier et al. 1993. Mycobacterium intermedium sp. nov. Int. J. Syst. Bacteriol., 1993, 43, 204-209.
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