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bovine actinomycosis, 3-year-old bull, 2-month evolution bony swelling of the right maxillae thick matter (top) and old fistulous granulomas. Actinomycosis is an infection caused by a bacterium of the genus Actinomyces, usually Actinomyces bovis; the disease it causes has several common names. When it is a moveable tumour or lump on the jaw ...
A. bovis is one of the few Actinomyces species considered to have some economic impact, [9] though this impact is considered minimal because it is not typically transmitted between animals within a herd and affected animals are often culled. In Ethiopia, actinomycosis accounted for 1.34% of condemnations. [28]
Actinomycosis is most frequently caused by A. israelii, which may also cause endocarditis, though the resulting symptoms may be similar to those resulting from infections by other bacterial species. [ 8 ] [ 9 ] Aggregatibacter actinomycetemcomitans has been identified as being of note in periodontal disease , especially aggressive and localized ...
Actinomycosis is a rare infectious bacterial disease caused by the gram-positive Actinomyces species. [1] The name refers to ray-like appearance of the organisms in the granules. About 70% of infections are due to either Actinomyces israelii or A. gerencseriae. [1] Infection can also be caused by Streptomyces somaliensis and Propionibacterium ...
Farmer's lung occurs because repeated exposure to antigens, found in the mold spores of hay, crops, and animal feed, triggers an allergic reaction within the farmer's immune system. [5] The defense mechanisms of the body present as cold and flu-like symptoms that occur in individuals who experience either acute or chronic reactions.
A. viscosus causes periodontal disease in animals and has been isolated from human dental calculus and root surface caries, as well as the oral cavity of hamsters and actinomycotic lesions in swine, cats, and dogs. [3] [4] Furthermore, it has been shown to cause endocarditis in humans. [5]
The organism is commonly found in dry and dusty soil and can be important for diseases of domesticated animals (horses and goats). The frequency of infection can reach near 60%. [1] R. equi is an important pathogen causing pneumonia in foals. Since 2008, R. equi has been known to infect wild boar and domestic pigs. [2]
Dermatophilus congolensis is a Gram-positive bacterium and the cause of a disease called dermatophilosis (sometimes called mud fever) in animals and humans, a dermatologic condition that manifests as the formation of crusty scabs containing the microorganism.