نتایج جستجو برای: mycobacterium bovis
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Mycobacterium bovis is the causative agent of tuberculosis in a range of animal species and man, with worldwide annual losses to agriculture of $3 billion. The human burden of tuberculosis caused by the bovine tubercle bacillus is still largely unknown. M. bovis was also the progenitor for the M. bovis bacillus Calmette-Guérin vaccine strain, the most widely used human vaccine. Here we describe...
BACKGROUND African buffaloes are the maintenance host for Mycobacterium bovis in the endemically infected Kruger National Park (KNP). The infection is primarily spread between buffaloes via the respiratory route, but it is not known whether shedding of M. bovis in nasal and oral excretions may lead to contamination of ground and surface water and facilitate the transmission to other animal spec...
The Mycobacterium tuberculosis complex includes bovine and human strains of the tuberculosis bacillus, including Mycobacterium tuberculosis, Mycobacterium bovis and the Mycobacterium bovis BCG vaccine strain. M. bovis has evolved from a M. tuberculosis-like ancestor and is the ancestor of the BCG vaccine. The pathogens demonstrate distinct differences in virulence, host range and metabolism, bu...
The IS6110 repetitive element is present in multiple copies in most Mycobacterium tuberculosis complex bacteria, except for Mycobacterium bovis strains, which usually contain a single copy of IS6110 located on a 1.9 kb PvuII fragment of the direct repeat region. IS6110 transposition can disrupt coding regions and is a major force of genomic variation. In a previous work it was demonstrated that...
Tuberculosis caused by infection with Mycobacterium tuberculosis or Mycobacterium bovis is a significant disease of man and animals. Whilst cellular immunity is the major immunological component required for protection against these organisms, recent reports have suggested that monoclonal antibodies can modify infection with M. tuberculosis. To test whether the same was true for M. bovis infect...
Automated sequence analysis of a 410-bp region of the axyR gene in 105 Mycobacterium tuberculosis complex isolates identified a polymorphic nucleotide that differentiated Mycobacterium bovis isolates from other complex members. All 29 M. bovis isolates sequenced had an adenine residue at nucleotide 285, whereas all 76 other complex isolates had a guanine residue. PCR-restriction fragment length...
Mycobacterium bovis is a zoonotic member of the Mycobacterium tuberculosis complex responsible for a clinical syndrome indistinguishable from that due to M. tuberculosis. In Australia, infection with M. bovis has historically been associated with employment in the livestock industry or immigration from countries in which animal disease is endemic. It currently accounts for 0.2% of all human cas...
Tuberculosis (TB) is a devastating disease that affects humans and many animal species. In humans, TB is mainly caused by Mycobacterium tuberculosis, whereas most cases in cattle are caused by Mycobacterium bovis. However, M. bovis can also cause, albeit rarely, human TB. In PNAS, Wu et al. (1) report the use of novel genetic tools to demonstrate that insertion of one gene into a genomic “safe ...
In order to achieve a better knowledge of Mycobacterium bovis epidemiology in Italy, 42 clinical isolates from humans were genotyped. Predominant molecular patterns were found in one cluster of 15 isolates sharing spoligotype (ST482), variable-number tandem repeat (VNTR), and IS6110-based restriction fragment length polymorphism (one 1.9-kb band) profiles and in two clusters of 6 and 3 Mycobact...
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