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Mycobacterium ulcerans is a species of bacteria found in various aquatic environments. The bacteria can infect humans and some other animals, causing persistent open wounds called Buruli ulcer . M. ulcerans is closely related to Mycobacterium marinum , from which it evolved around one million years ago, and more distantly to the mycobacteria ...
M. ulcerans is a mycobacterium, closely related to Mycobacterium marinum which infects aquatic animals and, rarely, humans. [9] It is more distantly related to other slow-growing mycobacteria that infect humans, such as Mycobacterium tuberculosis , which causes tuberculosis , and Mycobacterium leprae , which causes leprosy . [ 10 ]
Mycobacterium avium complex (MAC), also called Mycobacterium avium-intracellulare complex, is a microbial complex of three Mycobacterium species (i.e. M. avium, M. intracellulare, and M. chimaera). [6] It causes Mycobacterium avium-intracellulare infection. [7] [8] Some sources also include Mycobacterium avium subspecies paratuberculosis (MAP). [9]
There is now considerable evidence to suggest that this disease is an infection. Mycobacterium ulcerans has recently been isolated from lesions and is unique to tropical ulcers. [5] Early lesions may be colonized or infected by, Bacillus fusiformis (Vincent's organism), anaerobes and spirochaetes.
Most patients are aged less than 5 years, but the incidence is rare for children having BCG vaccine. The disease has a high curability. [17] Soft-tissue disease due to NTM infection include post-traumatic abscesses (caused by rapid growers), swimming pool granuloma (caused by M. marinum) and Buruli ulcer (caused by M. ulcerans or M. shinshuense ...
The symptoms of disease appear as pathogenic bacteria damage host tissues or interfere with their function. The bacteria can damage host cells directly or indirectly by provoking an immune response that inadvertently damages host cells, [ 21 ] or by releasing toxins .
These bacteria cause Mycobacterium avium-intracellulare infections or Mycobacterium avium complex infections in humans. [2] These bacteria are common and are found in fresh and salt water, in household dust and in soil. [3] MAC bacteria usually cause infection in those who are immunocompromised or those with severe lung disease.
Mycobacterium is a genus of over 190 species in the phylum Actinomycetota, assigned its own family, Mycobacteriaceae.This genus includes pathogens known to cause serious diseases in mammals, including tuberculosis (M. tuberculosis) and leprosy in humans.