Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Mycobacterium duvalii
Introduction
Mycobacterium duvalii
Description
Description
Gram-positive, nonmotile and pleomorphic acid-fast rods.
Colony characteristics
- Bright yellow pigmented, scotochromogenic and rough or smooth colonies on Löwenstein-Jensen medium.
Physiology
- Fast growth on [Löwenstein-Jensen medium at 25°C and 37°C within 7 days. No growth at 45°C.
- Resistant to isoniazid, rifampicin, and sodium aminosalicylate.
Differential characteristics
- Characterised by the possession of 6 species-specific antigens demonstrable in immunodiffusion tests.
Pathogenicity.
Type Strain
Type Strain
First isolated from cases of human leprosy by C. W. Duval. Strain ATCC 43910 = CCUG 41352 = CIP 104539 = DSM 44244 = JCM 6396 = NCTC 358.
References
References
- Stanford, J. et al. 1971. A study of some fast-growing scotochromogenic mycobacteria including species descriptions of Mycobacterium gilvum (new species) and Mycobacterium duvalii (new species). British Journal of Experimental Pathology, 52, 627-637.]
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