Mycobacterium paratuberculosis

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My·co·bac·te·ri·um par·a·tu·ber·cu·lo·'sis

a bacterial species causing Johne disease, a chronic enteritis in cattle.
See also: Johne disease.


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.

Mycobacterium avium
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.
Mycobacterium avium-intracellulare
complex see M. intracellulare (below).
Mycobacterium bovis
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
cause disease in a number of animal species, including mastitis in cattle and cutaneous mycobacterial granuloma in cats and dogs. See also opportunist (atypical) mycobacteria.
Mycobacterium farcinogenes, Mycobacterium senegalense
associated with bovine farcy.
Mycobacterium genovense
causes mycobacteriosis in birds.
Mycobacterium intracellulare
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.
Mycobacterium johnei
see M. avium subsp. paratuberculosis (above).
Mycobacterium kansasii
causes tuberculosis-like disease in pigs, deer and cattle.
Mycobacterium leprae
the cause of leprosy in humans.
Mycobacterium lepraemurium
causes murine and feline leprosy.
Mycobacterium marinum
found in water, it causes tuberculosis in fish and skin ulcers in humans.
Mycobacterium microti
the vole bacillus; lesions sometimes occur in other species.
Mycobacterium paratuberculosis
previously called M. johnei. See M. avium subsp. paratuberculosis (above).
Mycobacterium tuberculosis
the tubercle bacillus of humans, but found also in monkeys and pigs, and rarely in cattle, dogs and parrots.
Mycobacterium ulcerans
causes skin ulcers in humans and cats.
Mycobacterium xenopi
causes mycobacterial granuloma in cats and lymph node lesions in pigs.
References in periodicals archive ?
Grant IR (1998) Does Mycobacterium paratuberculosis survive current pasteurization conditions?
Incidence of Mycobacterium paratuberculosis infection in goats and sheep based on the fecal culture.
Seroprevalencia del Mycobacterium paratuberculosis en bovinos lecheros del Valle de Lima.
PI-3, parainfluenza-3 virus; PTB, Mycobacterium paratuberculosis (b) ELISA, enzyme-linked immunosorbent assay; SN, serum neutralization; CARD, card test; STP, standard-plate test; RIV, rivanol-precipitation-aggultination; AGID, standard agar-gel immunodiffusion; MAT, microscopic agglutination test (c) Tests for Brucella abortus were USDA/APHIS validated for elk.
Interferon-gamma and interleukin 4 gene expression in cows infected with Mycobacterium paratuberculosis.
A review of the Evidence for a Link between Exposure to Mycobacterium paratuberculosis (MAP) and Crohn's disease (CD) in Humans.
Mycobacterium paratuberculosis M Griffiths, University of Guelph, Canada
The news that a germ called mycobacterium paratuberculosis has been found in over 92 per cent of Crohn's cases shows that it's almost certainly a mycobacterial infection, which can be treated with a combination of antibiotics.
Stabel is studying the effectiveness of a variety of pasteurization temperature-and-time combinations for killing Mycobacterium paratuberculosis, another potentially harmful microbe.
Coussens returned to his position at MSU in June of 1999 and has most recently been building a program in the molecular pathogenesis of Mycobacterium paratuberculosis and Johne's disease.
Mycobacterium paratuberculosis is a hardy bacteria related to the agents of leprosy and tuberculosis.
Johne's disease is a chronic intestinal infection of cattle caused by Mycobacterium paratuberculosis and can lead to lower milk production, weight loss and premature culling of animals from a herd.

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