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a bacterial species found in a skin lesion of a cold-blooded animal, Xenopus laevis; a rare cause of nosocomial human pulmonary tuberculosis.
Mycobacterium xenopiA rare, slow-growing, scotochromogenic mycobacterium of low pathogenicity, which causes disease in immunocompromised hosts.
Mucocutaneous abscesses, often with cavitation; pulmonary and disseminated disease is rare.
M xenopi grows as confluent smooth, slimy, yellow colonies on Loewenstein-Jensen slants; smears of M xenopi appear as long cords of organisms.
High-dose INH, streptomycin, kanamycin, cycloserine.
Mycobacterium xenopiInfectious disease A rare atypical mycobacterium associated with clinical disease Clinical Mucocutaneous abscesses, often with cavitation; pulmonary and disseminated disease are rare Management High-dose INH, streptomycin, kanamycin, cycloserine
the only genus in the family Mycobacteriaceae of bacteria; slender acid-fast rods which may be straight or slightly curved. They may produce filaments or cocci. The most serious disease caused by members of this genus is tuberculosis. M. fortuitum, M. chelonea, M. marinum are listed as causes of piscine tuberculosis. Other species, including M. aquae, M. kansasii and M. scrofulaceum, may occasionally cause disease in a number of different species.
found mostly in birds but occasionally also in other animals and in humans. The tubercle bacillus of birds, it causes avian tuberculosis.
Mycobacterium avium subsp. paratuberculosis
causes Johne's disease in cattle, sheep, goats, deer and camelids. Previously called M. johnei and M. paratuberculosis.
complex see M. intracellulare (below).
the tubercle bacillus of the bovine, it causes tuberculosis in many animal species and humans.
Mycobacterium chelonei, Mycobacterium fortuitum, Mycobacterium phlei, Mycobacterium smegmatis, Mycobacterium thermoresistible
Mycobacterium farcinogenes, Mycobacterium senegalense
associated with bovine farcy.
causes mycobacteriosis in birds.
found in tuberculin-positive cattle and causes limited lymph node lesions in pigs. Closely related to M. avium and also described as M. avium-intracellulare complex.
see M. avium subsp. paratuberculosis (above).
causes tuberculosis-like disease in pigs, deer and cattle.
the cause of leprosy in humans.
causes murine and feline leprosy.
found in water, it causes tuberculosis in fish and skin ulcers in humans.
the vole bacillus; lesions sometimes occur in other species.
previously called M. johnei. See M. avium subsp. paratuberculosis (above).
the tubercle bacillus of humans, but found also in monkeys and pigs, and rarely in cattle, dogs and parrots.
causes skin ulcers in humans and cats.
causes mycobacterial granuloma in cats and lymph node lesions in pigs.