Mycobacterium Flashcards
Large mammals such as gazelles, antelopes, waterbucks, and oryxes Associated with human disease that is indistinguishable from M. tuberculosis
M. orygis
Is associated with the ingestion of unpasteurized diary products from infected cows Penetrates gastrointestinal mucosa or invades the oropharynx Bacillus Calmette-Guérin (BCG) vaccine
M. bovis
Typically found in rodents, guinea pigs, rabbits, cats, llamas, and meerkats
M. microti
31% of human tuberculosis cases. Reservoir hosts include goats, cattle, sheep, pigs, wild boars, deer, and fox
M. caprae
Is transmitted person to person via inhalation of droplets PPD test and immunodiagnostic assays may be used to diagnose the disease
M. tuberculosis
Identified in cases of lymphadenitis and generalized tuberculosis in immunocompromised individuals. Associated with individuals that have resided in Africa
M. canetti
Cause of half of the cases of tuberculosis in West Africa
M. africanum
Transmitted from sea lions to humans Associated with granulomatous lesions in the lymph nodes, lungs, pleura, and spleen
M. pinnipedii
Reservoir host include the banded mongoose
M. mungi
What Mycobacterium is nonculturable?
M. laprae
What are Photochromogens?
- Slow growing mycobacterial colonies that become pigmented when exposed to light
What are Scotochromogens?
- Slow growing mycobacterial colonies that are pigmented when grown in the light or the dark
What are Non-Photochromogens?
- Slow growing colonies that produce no pigment regardless of how they’re grown